21725600

素因数分解:

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

素因数の和:2122

約数の個数: 72

約数和(自身を含む): 57144780

約数和(自身を除く): 35419180

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 32, 40, 50, 52, 65, 80, 100, 104, 130, 160, 200, 208, 260, 325, 400, 416, 520, 650, 800, 1040, 1300, 2080, 2089, 2600, 4178, 5200, 8356, 10400, 10445, 16712, 20890, 27157, 33424, 41780, 52225, 54314, 66848, 83560, 104450, 108628, 135785, 167120, 208900, 217256, 271570, 334240, 417800, 434512, 543140, 678925, 835600, 869024, 1086280, 1357850, 1671200, 2172560, 2715700, 4345120, 5431400, 10862800, 21725600]

約数ペア:

[(1, 21725600), (2, 10862800), (4, 5431400), (5, 4345120), (8, 2715700), (10, 2172560), (13, 1671200), (16, 1357850), (20, 1086280), (25, 869024), (26, 835600), (32, 678925), (40, 543140), (50, 434512), (52, 417800), (65, 334240), (80, 271570), (100, 217256), (104, 208900), (130, 167120), (160, 135785), (200, 108628), (208, 104450), (260, 83560), (325, 66848), (400, 54314), (416, 52225), (520, 41780), (650, 33424), (800, 27157), (1040, 20890), (1300, 16712), (2080, 10445), (2089, 10400), (2600, 8356), (4178, 5200)]