31363280

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{569}}^1$

素因数の和:648

約数の個数: 80

約数和(自身を含む): 80151120

約数和(自身を除く): 48787840

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 53, 65, 80, 104, 106, 130, 208, 212, 260, 265, 424, 520, 530, 569, 689, 848, 1040, 1060, 1138, 1378, 2120, 2276, 2756, 2845, 3445, 4240, 4552, 5512, 5690, 6890, 7397, 9104, 11024, 11380, 13780, 14794, 22760, 27560, 29588, 30157, 36985, 45520, 55120, 59176, 60314, 73970, 118352, 120628, 147940, 150785, 241256, 295880, 301570, 392041, 482512, 591760, 603140, 784082, 1206280, 1568164, 1960205, 2412560, 3136328, 3920410, 6272656, 7840820, 15681640, 31363280]

約数ペア:

[(1, 31363280), (2, 15681640), (4, 7840820), (5, 6272656), (8, 3920410), (10, 3136328), (13, 2412560), (16, 1960205), (20, 1568164), (26, 1206280), (40, 784082), (52, 603140), (53, 591760), (65, 482512), (80, 392041), (104, 301570), (106, 295880), (130, 241256), (208, 150785), (212, 147940), (260, 120628), (265, 118352), (424, 73970), (520, 60314), (530, 59176), (569, 55120), (689, 45520), (848, 36985), (1040, 30157), (1060, 29588), (1138, 27560), (1378, 22760), (2120, 14794), (2276, 13780), (2756, 11380), (2845, 11024), (3445, 9104), (4240, 7397), (4552, 6890), (5512, 5690)]