20406479328

素因数分解:

$2^5\times 3^2\times {\mathrm{41}}^2\times {\mathrm{61}}^1\times {\mathrm{691}}^1$

素因数の和:850

約数の個数: 216

約数和(自身を含む): 60543421848

約数和(自身を除く): 40136942520

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 41, 48, 61, 72, 82, 96, 122, 123, 144, 164, 183, 244, 246, 288, 328, 366, 369, 488, 492, 549, 656, 691, 732, 738, 976, 984, 1098, 1312, 1382, 1464, 1476, 1681, 1952, 1968, 2073, 2196, 2501, 2764, 2928, 2952, 3362, 3936, 4146, 4392, 5002, 5043, 5528, 5856, 5904, 6219, 6724, 7503, 8292, 8784, 10004, 10086, 11056, 11808, 12438, 13448, 15006, 15129, 16584, 17568, 20008, 20172, 22112, 22509, 24876, 26896, 28331, 30012, 30258, 33168, 40016, 40344, 42151, 45018, 49752, 53792, 56662, 60024, 60516, 66336, 80032, 80688, 84302, 84993, 90036, 99504, 102541, 113324, 120048, 121032, 126453, 161376, 168604, 169986, 180072, 199008, 205082, 226648, 240096, 242064, 252906, 254979, 307623, 337208, 339972, 360144, 379359, 410164, 453296, 484128, 505812, 509958, 615246, 674416, 679944, 720288, 758718, 820328, 906592, 922869, 1011624, 1019916, 1161571, 1230492, 1348832, 1359888, 1517436, 1640656, 1728191, 1845738, 2023248, 2039832, 2323142, 2460984, 2719776, 3034872, 3281312, 3456382, 3484713, 3691476, 4046496, 4079664, 4646284, 4921968, 5184573, 6069744, 6912764, 6969426, 7382952, 8159328, 9292568, 9843936, 10369146, 10454139, 12139488, 13825528, 13938852, 14765904, 15553719, 18585136, 20738292, 20908278, 27651056, 27877704, 29531808, 31107438, 37170272, 41476584, 41816556, 55302112, 55755408, 62214876, 70855831, 82953168, 83633112, 111510816, 124429752, 141711662, 165906336, 167266224, 212567493, 248859504, 283423324, 334532448, 425134986, 497719008, 566846648, 637702479, 850269972, 1133693296, 1275404958, 1700539944, 2267386592, 2550809916, 3401079888, 5101619832, 6802159776, 10203239664, 20406479328]

約数ペア:

[(1, 20406479328), (2, 10203239664), (3, 6802159776), (4, 5101619832), (6, 3401079888), (8, 2550809916), (9, 2267386592), (12, 1700539944), (16, 1275404958), (18, 1133693296), (24, 850269972), (32, 637702479), (36, 566846648), (41, 497719008), (48, 425134986), (61, 334532448), (72, 283423324), (82, 248859504), (96, 212567493), (122, 167266224), (123, 165906336), (144, 141711662), (164, 124429752), (183, 111510816), (244, 83633112), (246, 82953168), (288, 70855831), (328, 62214876), (366, 55755408), (369, 55302112), (488, 41816556), (492, 41476584), (549, 37170272), (656, 31107438), (691, 29531808), (732, 27877704), (738, 27651056), (976, 20908278), (984, 20738292), (1098, 18585136), (1312, 15553719), (1382, 14765904), (1464, 13938852), (1476, 13825528), (1681, 12139488), (1952, 10454139), (1968, 10369146), (2073, 9843936), (2196, 9292568), (2501, 8159328), (2764, 7382952), (2928, 6969426), (2952, 6912764), (3362, 6069744), (3936, 5184573), (4146, 4921968), (4392, 4646284), (5002, 4079664), (5043, 4046496), (5528, 3691476), (5856, 3484713), (5904, 3456382), (6219, 3281312), (6724, 3034872), (7503, 2719776), (8292, 2460984), (8784, 2323142), (10004, 2039832), (10086, 2023248), (11056, 1845738), (11808, 1728191), (12438, 1640656), (13448, 1517436), (15006, 1359888), (15129, 1348832), (16584, 1230492), (17568, 1161571), (20008, 1019916), (20172, 1011624), (22112, 922869), (22509, 906592), (24876, 820328), (26896, 758718), (28331, 720288), (30012, 679944), (30258, 674416), (33168, 615246), (40016, 509958), (40344, 505812), (42151, 484128), (45018, 453296), (49752, 410164), (53792, 379359), (56662, 360144), (60024, 339972), (60516, 337208), (66336, 307623), (80032, 254979), (80688, 252906), (84302, 242064), (84993, 240096), (90036, 226648), (99504, 205082), (102541, 199008), (113324, 180072), (120048, 169986), (121032, 168604), (126453, 161376)]