31039450

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{53}}^2$

素因数の和:148

約数の個数: 72

約数和(自身を含む): 67097268

約数和(自身を除く): 36057818

約数列:

[1, 2, 5, 10, 13, 17, 25, 26, 34, 50, 53, 65, 85, 106, 130, 170, 221, 265, 325, 425, 442, 530, 650, 689, 850, 901, 1105, 1325, 1378, 1802, 2210, 2650, 2809, 3445, 4505, 5525, 5618, 6890, 9010, 11050, 11713, 14045, 17225, 22525, 23426, 28090, 34450, 36517, 45050, 47753, 58565, 70225, 73034, 95506, 117130, 140450, 182585, 238765, 292825, 365170, 477530, 585650, 620789, 912925, 1193825, 1241578, 1825850, 2387650, 3103945, 6207890, 15519725, 31039450]

約数ペア:

[(1, 31039450), (2, 15519725), (5, 6207890), (10, 3103945), (13, 2387650), (17, 1825850), (25, 1241578), (26, 1193825), (34, 912925), (50, 620789), (53, 585650), (65, 477530), (85, 365170), (106, 292825), (130, 238765), (170, 182585), (221, 140450), (265, 117130), (325, 95506), (425, 73034), (442, 70225), (530, 58565), (650, 47753), (689, 45050), (850, 36517), (901, 34450), (1105, 28090), (1325, 23426), (1378, 22525), (1802, 17225), (2210, 14045), (2650, 11713), (2809, 11050), (3445, 9010), (4505, 6890), (5525, 5618)]