40987960

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{78823}}^1$

素因数の和:78847

約数の個数: 32

約数和(自身を含む): 99318240

約数和(自身を除く): 58330280

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 78823, 157646, 315292, 394115, 630584, 788230, 1024699, 1576460, 2049398, 3152920, 4098796, 5123495, 8197592, 10246990, 20493980, 40987960]

約数ペア:

[(1, 40987960), (2, 20493980), (4, 10246990), (5, 8197592), (8, 5123495), (10, 4098796), (13, 3152920), (20, 2049398), (26, 1576460), (40, 1024699), (52, 788230), (65, 630584), (104, 394115), (130, 315292), (260, 157646), (520, 78823)]