1256551345

素因数分解:

$5^1\times 7^4\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{131}}^1$

素因数の和:228

約数の個数: 80

約数和(自身を含む): 1916690688

約数和(自身を除く): 660139343

約数列:

[1, 5, 7, 17, 35, 47, 49, 85, 119, 131, 235, 245, 329, 343, 595, 655, 799, 833, 917, 1645, 1715, 2227, 2303, 2401, 3995, 4165, 4585, 5593, 5831, 6157, 6419, 11135, 11515, 12005, 15589, 16121, 27965, 29155, 30785, 32095, 39151, 40817, 43099, 44933, 77945, 80605, 104669, 109123, 112847, 195755, 204085, 215495, 224665, 274057, 301693, 314531, 523345, 545615, 564235, 732683, 763861, 1370285, 1508465, 1572655, 1918399, 2111851, 3663415, 3819305, 5128781, 5347027, 9591995, 10559255, 14782957, 25643905, 26735135, 35901467, 73914785, 179507335, 251310269, 1256551345]

約数ペア:

[(1, 1256551345), (5, 251310269), (7, 179507335), (17, 73914785), (35, 35901467), (47, 26735135), (49, 25643905), (85, 14782957), (119, 10559255), (131, 9591995), (235, 5347027), (245, 5128781), (329, 3819305), (343, 3663415), (595, 2111851), (655, 1918399), (799, 1572655), (833, 1508465), (917, 1370285), (1645, 763861), (1715, 732683), (2227, 564235), (2303, 545615), (2401, 523345), (3995, 314531), (4165, 301693), (4585, 274057), (5593, 224665), (5831, 215495), (6157, 204085), (6419, 195755), (11135, 112847), (11515, 109123), (12005, 104669), (15589, 80605), (16121, 77945), (27965, 44933), (29155, 43099), (30785, 40817), (32095, 39151)]