20190512

素因数分解:

$2^4\times {\mathrm{61}}^1\times {\mathrm{137}}^1\times {\mathrm{151}}^1$

素因数の和:357

約数の個数: 40

約数和(自身を含む): 40315872

約数和(自身を除く): 20125360

約数列:

[1, 2, 4, 8, 16, 61, 122, 137, 151, 244, 274, 302, 488, 548, 604, 976, 1096, 1208, 2192, 2416, 8357, 9211, 16714, 18422, 20687, 33428, 36844, 41374, 66856, 73688, 82748, 133712, 147376, 165496, 330992, 1261907, 2523814, 5047628, 10095256, 20190512]

約数ペア:

[(1, 20190512), (2, 10095256), (4, 5047628), (8, 2523814), (16, 1261907), (61, 330992), (122, 165496), (137, 147376), (151, 133712), (244, 82748), (274, 73688), (302, 66856), (488, 41374), (548, 36844), (604, 33428), (976, 20687), (1096, 18422), (1208, 16714), (2192, 9211), (2416, 8357)]