2172560

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{2089}}^1$

素因数の和:2115

約数の個数: 40

約数和(自身を含む): 5442360

約数和(自身を除く): 3269800

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 2089, 4178, 8356, 10445, 16712, 20890, 27157, 33424, 41780, 54314, 83560, 108628, 135785, 167120, 217256, 271570, 434512, 543140, 1086280, 2172560]

約数ペア:

[(1, 2172560), (2, 1086280), (4, 543140), (5, 434512), (8, 271570), (10, 217256), (13, 167120), (16, 135785), (20, 108628), (26, 83560), (40, 54314), (52, 41780), (65, 33424), (80, 27157), (104, 20890), (130, 16712), (208, 10445), (260, 8356), (520, 4178), (1040, 2089)]