7561445840

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{7270621}}^1$

素因数の和:7270647

約数の個数: 40

約数和(自身を含む): 18932699688

約数和(自身を除く): 11371253848

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 7270621, 14541242, 29082484, 36353105, 58164968, 72706210, 94518073, 116329936, 145412420, 189036146, 290824840, 378072292, 472590365, 581649680, 756144584, 945180730, 1512289168, 1890361460, 3780722920, 7561445840]

約数ペア:

[(1, 7561445840), (2, 3780722920), (4, 1890361460), (5, 1512289168), (8, 945180730), (10, 756144584), (13, 581649680), (16, 472590365), (20, 378072292), (26, 290824840), (40, 189036146), (52, 145412420), (65, 116329936), (80, 94518073), (104, 72706210), (130, 58164968), (208, 36353105), (260, 29082484), (520, 14541242), (1040, 7270621)]