2487550

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1$

素因数の和:157

約数の個数: 48

約数和(自身を含む): 5155920

約数和(自身を除く): 2668370

約数列:

[1, 2, 5, 10, 13, 25, 26, 43, 50, 65, 86, 89, 130, 178, 215, 325, 430, 445, 559, 650, 890, 1075, 1118, 1157, 2150, 2225, 2314, 2795, 3827, 4450, 5590, 5785, 7654, 11570, 13975, 19135, 27950, 28925, 38270, 49751, 57850, 95675, 99502, 191350, 248755, 497510, 1243775, 2487550]

約数ペア:

[(1, 2487550), (2, 1243775), (5, 497510), (10, 248755), (13, 191350), (25, 99502), (26, 95675), (43, 57850), (50, 49751), (65, 38270), (86, 28925), (89, 27950), (130, 19135), (178, 13975), (215, 11570), (325, 7654), (430, 5785), (445, 5590), (559, 4450), (650, 3827), (890, 2795), (1075, 2314), (1118, 2225), (1157, 2150)]