15681640

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{569}}^1$

素因数の和:646

約数の個数: 64

約数和(自身を含む): 38782800

約数和(自身を除く): 23101160

約数列:

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

約数ペア:

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