64769575

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{617}}^1$

素因数の和:676

約数の個数: 48

約数和(自身を含む): 96556320

約数和(自身を除く): 31786745

約数列:

[1, 5, 13, 17, 19, 25, 65, 85, 95, 221, 247, 323, 325, 425, 475, 617, 1105, 1235, 1615, 3085, 4199, 5525, 6175, 8021, 8075, 10489, 11723, 15425, 20995, 40105, 52445, 58615, 104975, 136357, 152399, 199291, 200525, 262225, 293075, 681785, 761995, 996455, 2590783, 3408925, 3809975, 4982275, 12953915, 64769575]

約数ペア:

[(1, 64769575), (5, 12953915), (13, 4982275), (17, 3809975), (19, 3408925), (25, 2590783), (65, 996455), (85, 761995), (95, 681785), (221, 293075), (247, 262225), (323, 200525), (325, 199291), (425, 152399), (475, 136357), (617, 104975), (1105, 58615), (1235, 52445), (1615, 40105), (3085, 20995), (4199, 15425), (5525, 11723), (6175, 10489), (8021, 8075)]