9920560

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{9539}}^1$

素因数の和:9565

約数の個数: 40

約数和(自身を含む): 24842160

約数和(自身を除く): 14921600

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 9539, 19078, 38156, 47695, 76312, 95390, 124007, 152624, 190780, 248014, 381560, 496028, 620035, 763120, 992056, 1240070, 1984112, 2480140, 4960280, 9920560]

約数ペア:

[(1, 9920560), (2, 4960280), (4, 2480140), (5, 1984112), (8, 1240070), (10, 992056), (13, 763120), (16, 620035), (20, 496028), (26, 381560), (40, 248014), (52, 190780), (65, 152624), (80, 124007), (104, 95390), (130, 76312), (208, 47695), (260, 38156), (520, 19078), (1040, 9539)]