20078864

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{2609}}^1$

素因数の和:2667

約数の個数: 40

約数和(自身を含む): 43044120

約数和(自身を除く): 22965256

約数列:

[1, 2, 4, 8, 13, 16, 26, 37, 52, 74, 104, 148, 208, 296, 481, 592, 962, 1924, 2609, 3848, 5218, 7696, 10436, 20872, 33917, 41744, 67834, 96533, 135668, 193066, 271336, 386132, 542672, 772264, 1254929, 1544528, 2509858, 5019716, 10039432, 20078864]

約数ペア:

[(1, 20078864), (2, 10039432), (4, 5019716), (8, 2509858), (13, 1544528), (16, 1254929), (26, 772264), (37, 542672), (52, 386132), (74, 271336), (104, 193066), (148, 135668), (208, 96533), (296, 67834), (481, 41744), (592, 33917), (962, 20872), (1924, 10436), (2609, 7696), (3848, 5218)]