64761040

素因数分解:

$2^4\times 5^1\times {\mathrm{79}}^1\times {\mathrm{10247}}^1$

素因数の和:10339

約数の個数: 40

約数和(自身を含む): 152490240

約数和(自身を除く): 87729200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 79, 80, 158, 316, 395, 632, 790, 1264, 1580, 3160, 6320, 10247, 20494, 40988, 51235, 81976, 102470, 163952, 204940, 409880, 809513, 819760, 1619026, 3238052, 4047565, 6476104, 8095130, 12952208, 16190260, 32380520, 64761040]

約数ペア:

[(1, 64761040), (2, 32380520), (4, 16190260), (5, 12952208), (8, 8095130), (10, 6476104), (16, 4047565), (20, 3238052), (40, 1619026), (79, 819760), (80, 809513), (158, 409880), (316, 204940), (395, 163952), (632, 102470), (790, 81976), (1264, 51235), (1580, 40988), (3160, 20494), (6320, 10247)]