20177362816

素因数分解:

$2^7\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{638201}}^1$

素因数の和:638247

約数の個数: 64

約数和(自身を含む): 45567622800

約数和(自身を除く): 25390259984

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 32, 38, 52, 64, 76, 104, 128, 152, 208, 247, 304, 416, 494, 608, 832, 988, 1216, 1664, 1976, 2432, 3952, 7904, 15808, 31616, 638201, 1276402, 2552804, 5105608, 8296613, 10211216, 12125819, 16593226, 20422432, 24251638, 33186452, 40844864, 48503276, 66372904, 81689728, 97006552, 132745808, 157635647, 194013104, 265491616, 315271294, 388026208, 530983232, 630542588, 776052416, 1061966464, 1261085176, 1552104832, 2522170352, 5044340704, 10088681408, 20177362816]

約数ペア:

[(1, 20177362816), (2, 10088681408), (4, 5044340704), (8, 2522170352), (13, 1552104832), (16, 1261085176), (19, 1061966464), (26, 776052416), (32, 630542588), (38, 530983232), (52, 388026208), (64, 315271294), (76, 265491616), (104, 194013104), (128, 157635647), (152, 132745808), (208, 97006552), (247, 81689728), (304, 66372904), (416, 48503276), (494, 40844864), (608, 33186452), (832, 24251638), (988, 20422432), (1216, 16593226), (1664, 12125819), (1976, 10211216), (2432, 8296613), (3952, 5105608), (7904, 2552804), (15808, 1276402), (31616, 638201)]