12780495560

素因数分解:

$2^3\times 5^1\times 7^3\times {\mathrm{23}}^1\times {\mathrm{101}}^1\times {\mathrm{401}}^1$

素因数の和:557

約数の個数: 256

約数和(自身を含む): 35427456000

約数和(自身を除く): 22646960440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 23, 28, 35, 40, 46, 49, 56, 70, 92, 98, 101, 115, 140, 161, 184, 196, 202, 230, 245, 280, 322, 343, 392, 401, 404, 460, 490, 505, 644, 686, 707, 802, 805, 808, 920, 980, 1010, 1127, 1288, 1372, 1414, 1604, 1610, 1715, 1960, 2005, 2020, 2254, 2323, 2744, 2807, 2828, 3208, 3220, 3430, 3535, 4010, 4040, 4508, 4646, 4949, 5614, 5635, 5656, 6440, 6860, 7070, 7889, 8020, 9016, 9223, 9292, 9898, 11228, 11270, 11615, 13720, 14035, 14140, 15778, 16040, 16261, 18446, 18584, 19649, 19796, 22456, 22540, 23230, 24745, 28070, 28280, 31556, 32522, 34643, 36892, 39298, 39445, 39592, 40501, 45080, 46115, 46460, 49490, 56140, 63112, 64561, 65044, 69286, 73784, 78596, 78890, 81002, 81305, 92230, 92920, 98245, 98980, 112280, 113827, 129122, 130088, 137543, 138572, 157192, 157780, 162004, 162610, 173215, 184460, 196490, 197960, 202505, 227654, 258244, 275086, 277144, 283507, 315560, 322805, 324008, 325220, 346430, 368920, 392980, 405010, 451927, 455308, 516488, 550172, 567014, 569135, 645610, 650440, 687715, 692860, 785960, 796789, 810020, 903854, 910616, 931523, 1100344, 1134028, 1138270, 1291220, 1375430, 1385720, 1417535, 1593578, 1620040, 1807708, 1863046, 1984549, 2259635, 2268056, 2276540, 2582440, 2750860, 2835070, 3163489, 3187156, 3615416, 3726092, 3969098, 3983945, 4519270, 4553080, 4657615, 5501720, 5670140, 6326978, 6374312, 6520661, 7452184, 7938196, 7967890, 9038540, 9315230, 9922745, 11340280, 12653956, 13041322, 13891843, 15817445, 15876392, 15935780, 18077080, 18630460, 19845490, 25307912, 26082644, 27783686, 31634890, 31871560, 32603305, 37260920, 39690980, 45644627, 52165288, 55567372, 63269780, 65206610, 69459215, 79381960, 91289254, 111134744, 126539560, 130413220, 138918430, 182578508, 228223135, 260826440, 277836860, 319512389, 365157016, 456446270, 555673720, 639024778, 912892540, 1278049556, 1597561945, 1825785080, 2556099112, 3195123890, 6390247780, 12780495560]

約数ペア:

[(1, 12780495560), (2, 6390247780), (4, 3195123890), (5, 2556099112), (7, 1825785080), (8, 1597561945), (10, 1278049556), (14, 912892540), (20, 639024778), (23, 555673720), (28, 456446270), (35, 365157016), (40, 319512389), (46, 277836860), (49, 260826440), (56, 228223135), (70, 182578508), (92, 138918430), (98, 130413220), (101, 126539560), (115, 111134744), (140, 91289254), (161, 79381960), (184, 69459215), (196, 65206610), (202, 63269780), (230, 55567372), (245, 52165288), (280, 45644627), (322, 39690980), (343, 37260920), (392, 32603305), (401, 31871560), (404, 31634890), (460, 27783686), (490, 26082644), (505, 25307912), (644, 19845490), (686, 18630460), (707, 18077080), (802, 15935780), (805, 15876392), (808, 15817445), (920, 13891843), (980, 13041322), (1010, 12653956), (1127, 11340280), (1288, 9922745), (1372, 9315230), (1414, 9038540), (1604, 7967890), (1610, 7938196), (1715, 7452184), (1960, 6520661), (2005, 6374312), (2020, 6326978), (2254, 5670140), (2323, 5501720), (2744, 4657615), (2807, 4553080), (2828, 4519270), (3208, 3983945), (3220, 3969098), (3430, 3726092), (3535, 3615416), (4010, 3187156), (4040, 3163489), (4508, 2835070), (4646, 2750860), (4949, 2582440), (5614, 2276540), (5635, 2268056), (5656, 2259635), (6440, 1984549), (6860, 1863046), (7070, 1807708), (7889, 1620040), (8020, 1593578), (9016, 1417535), (9223, 1385720), (9292, 1375430), (9898, 1291220), (11228, 1138270), (11270, 1134028), (11615, 1100344), (13720, 931523), (14035, 910616), (14140, 903854), (15778, 810020), (16040, 796789), (16261, 785960), (18446, 692860), (18584, 687715), (19649, 650440), (19796, 645610), (22456, 569135), (22540, 567014), (23230, 550172), (24745, 516488), (28070, 455308), (28280, 451927), (31556, 405010), (32522, 392980), (34643, 368920), (36892, 346430), (39298, 325220), (39445, 324008), (39592, 322805), (40501, 315560), (45080, 283507), (46115, 277144), (46460, 275086), (49490, 258244), (56140, 227654), (63112, 202505), (64561, 197960), (65044, 196490), (69286, 184460), (73784, 173215), (78596, 162610), (78890, 162004), (81002, 157780), (81305, 157192), (92230, 138572), (92920, 137543), (98245, 130088), (98980, 129122), (112280, 113827)]