64937740

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1$

素因数の和:156

約数の個数: 144

約数和(自身を含む): 171908352

約数和(自身を除く): 106970612

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 43, 46, 49, 67, 70, 86, 92, 98, 115, 134, 140, 161, 172, 196, 215, 230, 245, 268, 301, 322, 335, 430, 460, 469, 490, 602, 644, 670, 805, 860, 938, 980, 989, 1127, 1204, 1340, 1505, 1541, 1610, 1876, 1978, 2107, 2254, 2345, 2881, 3010, 3082, 3220, 3283, 3956, 4214, 4508, 4690, 4945, 5635, 5762, 6020, 6164, 6566, 6923, 7705, 8428, 9380, 9890, 10535, 10787, 11270, 11524, 13132, 13846, 14405, 15410, 16415, 19780, 20167, 21070, 21574, 22540, 27692, 28810, 30820, 32830, 34615, 40334, 42140, 43148, 48461, 53935, 57620, 65660, 66263, 69230, 75509, 80668, 96922, 100835, 107870, 132526, 138460, 141169, 151018, 193844, 201670, 215740, 242305, 265052, 282338, 302036, 331315, 377545, 403340, 463841, 484610, 564676, 662630, 705845, 755090, 927682, 969220, 1325260, 1411690, 1510180, 1855364, 2319205, 2823380, 3246887, 4638410, 6493774, 9276820, 12987548, 16234435, 32468870, 64937740]

約数ペア:

[(1, 64937740), (2, 32468870), (4, 16234435), (5, 12987548), (7, 9276820), (10, 6493774), (14, 4638410), (20, 3246887), (23, 2823380), (28, 2319205), (35, 1855364), (43, 1510180), (46, 1411690), (49, 1325260), (67, 969220), (70, 927682), (86, 755090), (92, 705845), (98, 662630), (115, 564676), (134, 484610), (140, 463841), (161, 403340), (172, 377545), (196, 331315), (215, 302036), (230, 282338), (245, 265052), (268, 242305), (301, 215740), (322, 201670), (335, 193844), (430, 151018), (460, 141169), (469, 138460), (490, 132526), (602, 107870), (644, 100835), (670, 96922), (805, 80668), (860, 75509), (938, 69230), (980, 66263), (989, 65660), (1127, 57620), (1204, 53935), (1340, 48461), (1505, 43148), (1541, 42140), (1610, 40334), (1876, 34615), (1978, 32830), (2107, 30820), (2254, 28810), (2345, 27692), (2881, 22540), (3010, 21574), (3082, 21070), (3220, 20167), (3283, 19780), (3956, 16415), (4214, 15410), (4508, 14405), (4690, 13846), (4945, 13132), (5635, 11524), (5762, 11270), (6020, 10787), (6164, 10535), (6566, 9890), (6923, 9380), (7705, 8428)]