256371504

素因数分解:

$2^4\times 3^1\times {\mathrm{43}}^1\times {\mathrm{223}}^1\times {\mathrm{557}}^1$

素因数の和:834

約数の個数: 80

約数和(自身を含む): 681956352

約数和(自身を除く): 425584848

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 43, 48, 86, 129, 172, 223, 258, 344, 446, 516, 557, 669, 688, 892, 1032, 1114, 1338, 1671, 1784, 2064, 2228, 2676, 3342, 3568, 4456, 5352, 6684, 8912, 9589, 10704, 13368, 19178, 23951, 26736, 28767, 38356, 47902, 57534, 71853, 76712, 95804, 115068, 124211, 143706, 153424, 191608, 230136, 248422, 287412, 372633, 383216, 460272, 496844, 574824, 745266, 993688, 1149648, 1490532, 1987376, 2981064, 5341073, 5962128, 10682146, 16023219, 21364292, 32046438, 42728584, 64092876, 85457168, 128185752, 256371504]

約数ペア:

[(1, 256371504), (2, 128185752), (3, 85457168), (4, 64092876), (6, 42728584), (8, 32046438), (12, 21364292), (16, 16023219), (24, 10682146), (43, 5962128), (48, 5341073), (86, 2981064), (129, 1987376), (172, 1490532), (223, 1149648), (258, 993688), (344, 745266), (446, 574824), (516, 496844), (557, 460272), (669, 383216), (688, 372633), (892, 287412), (1032, 248422), (1114, 230136), (1338, 191608), (1671, 153424), (1784, 143706), (2064, 124211), (2228, 115068), (2676, 95804), (3342, 76712), (3568, 71853), (4456, 57534), (5352, 47902), (6684, 38356), (8912, 28767), (9589, 26736), (10704, 23951), (13368, 19178)]