18616520

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{35801}}^1$

素因数の和:35825

約数の個数: 32

約数和(自身を含む): 45110520

約数和(自身を除く): 26494000

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 35801, 71602, 143204, 179005, 286408, 358010, 465413, 716020, 930826, 1432040, 1861652, 2327065, 3723304, 4654130, 9308260, 18616520]

約数ペア:

[(1, 18616520), (2, 9308260), (4, 4654130), (5, 3723304), (8, 2327065), (10, 1861652), (13, 1432040), (20, 930826), (26, 716020), (40, 465413), (52, 358010), (65, 286408), (104, 179005), (130, 143204), (260, 71602), (520, 35801)]