257156950

素因数分解:

$2^1\times 5^2\times {\mathrm{139}}^1\times {\mathrm{163}}^1\times {\mathrm{227}}^1$

素因数の和:541

約数の個数: 48

約数和(自身を含む): 486843840

約数和(自身を除く): 229686890

約数列:

[1, 2, 5, 10, 25, 50, 139, 163, 227, 278, 326, 454, 695, 815, 1135, 1390, 1630, 2270, 3475, 4075, 5675, 6950, 8150, 11350, 22657, 31553, 37001, 45314, 63106, 74002, 113285, 157765, 185005, 226570, 315530, 370010, 566425, 788825, 925025, 1132850, 1577650, 1850050, 5143139, 10286278, 25715695, 51431390, 128578475, 257156950]

約数ペア:

[(1, 257156950), (2, 128578475), (5, 51431390), (10, 25715695), (25, 10286278), (50, 5143139), (139, 1850050), (163, 1577650), (227, 1132850), (278, 925025), (326, 788825), (454, 566425), (695, 370010), (815, 315530), (1135, 226570), (1390, 185005), (1630, 157765), (2270, 113285), (3475, 74002), (4075, 63106), (5675, 45314), (6950, 37001), (8150, 31553), (11350, 22657)]