638820468

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{389}}^1$

素因数の和:463

約数の個数: 216

約数和(自身を含む): 1982471400

約数和(自身を除く): 1343650932

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 13, 18, 22, 26, 29, 33, 36, 39, 44, 52, 58, 66, 78, 87, 99, 116, 117, 121, 132, 143, 156, 174, 198, 234, 242, 261, 286, 319, 348, 363, 377, 389, 396, 429, 468, 484, 522, 572, 638, 726, 754, 778, 858, 957, 1044, 1089, 1131, 1167, 1276, 1287, 1452, 1508, 1556, 1573, 1716, 1914, 2178, 2262, 2334, 2574, 2871, 3146, 3393, 3501, 3509, 3828, 4147, 4279, 4356, 4524, 4668, 4719, 5057, 5148, 5742, 6292, 6786, 7002, 7018, 8294, 8558, 9438, 10114, 10527, 11281, 11484, 12441, 12837, 13572, 14004, 14036, 14157, 15171, 16588, 17116, 18876, 20228, 21054, 22562, 24882, 25674, 28314, 30342, 31581, 33843, 37323, 38511, 42108, 45124, 45513, 45617, 47069, 49764, 51348, 55627, 56628, 60684, 63162, 67686, 74646, 77022, 91026, 91234, 94138, 101529, 111254, 124091, 126324, 135372, 136851, 141207, 146653, 149292, 154044, 166881, 182052, 182468, 188276, 203058, 222508, 248182, 273702, 282414, 293306, 333762, 372273, 406116, 410553, 423621, 439959, 496364, 500643, 547404, 564828, 586612, 611897, 667524, 744546, 821106, 847242, 879918, 1001286, 1116819, 1223794, 1319877, 1365001, 1489092, 1613183, 1642212, 1694484, 1759836, 1835691, 2002572, 2233638, 2447588, 2639754, 2730002, 3226366, 3671382, 4095003, 4467276, 4839549, 5279508, 5460004, 5507073, 6452732, 7342764, 8190006, 9679098, 11014146, 12285009, 14518647, 16380012, 17745013, 19358196, 22028292, 24570018, 29037294, 35490026, 49140036, 53235039, 58074588, 70980052, 106470078, 159705117, 212940156, 319410234, 638820468]

約数ペア:

[(1, 638820468), (2, 319410234), (3, 212940156), (4, 159705117), (6, 106470078), (9, 70980052), (11, 58074588), (12, 53235039), (13, 49140036), (18, 35490026), (22, 29037294), (26, 24570018), (29, 22028292), (33, 19358196), (36, 17745013), (39, 16380012), (44, 14518647), (52, 12285009), (58, 11014146), (66, 9679098), (78, 8190006), (87, 7342764), (99, 6452732), (116, 5507073), (117, 5460004), (121, 5279508), (132, 4839549), (143, 4467276), (156, 4095003), (174, 3671382), (198, 3226366), (234, 2730002), (242, 2639754), (261, 2447588), (286, 2233638), (319, 2002572), (348, 1835691), (363, 1759836), (377, 1694484), (389, 1642212), (396, 1613183), (429, 1489092), (468, 1365001), (484, 1319877), (522, 1223794), (572, 1116819), (638, 1001286), (726, 879918), (754, 847242), (778, 821106), (858, 744546), (957, 667524), (1044, 611897), (1089, 586612), (1131, 564828), (1167, 547404), (1276, 500643), (1287, 496364), (1452, 439959), (1508, 423621), (1556, 410553), (1573, 406116), (1716, 372273), (1914, 333762), (2178, 293306), (2262, 282414), (2334, 273702), (2574, 248182), (2871, 222508), (3146, 203058), (3393, 188276), (3501, 182468), (3509, 182052), (3828, 166881), (4147, 154044), (4279, 149292), (4356, 146653), (4524, 141207), (4668, 136851), (4719, 135372), (5057, 126324), (5148, 124091), (5742, 111254), (6292, 101529), (6786, 94138), (7002, 91234), (7018, 91026), (8294, 77022), (8558, 74646), (9438, 67686), (10114, 63162), (10527, 60684), (11281, 56628), (11484, 55627), (12441, 51348), (12837, 49764), (13572, 47069), (14004, 45617), (14036, 45513), (14157, 45124), (15171, 42108), (16588, 38511), (17116, 37323), (18876, 33843), (20228, 31581), (21054, 30342), (22562, 28314), (24882, 25674)]