77867920

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{74873}}^1$

素因数の和:74899

約数の個数: 40

約数和(自身を含む): 194971896

約数和(自身を除く): 117103976

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 74873, 149746, 299492, 374365, 598984, 748730, 973349, 1197968, 1497460, 1946698, 2994920, 3893396, 4866745, 5989840, 7786792, 9733490, 15573584, 19466980, 38933960, 77867920]

約数ペア:

[(1, 77867920), (2, 38933960), (4, 19466980), (5, 15573584), (8, 9733490), (10, 7786792), (13, 5989840), (16, 4866745), (20, 3893396), (26, 2994920), (40, 1946698), (52, 1497460), (65, 1197968), (80, 973349), (104, 748730), (130, 598984), (208, 374365), (260, 299492), (520, 149746), (1040, 74873)]