256439504

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{109}}^2$

素因数の和:316

約数の個数: 60

約数和(自身を含む): 535278240

約数和(自身を除く): 278838736

約数列:

[1, 2, 4, 8, 16, 19, 38, 71, 76, 109, 142, 152, 218, 284, 304, 436, 568, 872, 1136, 1349, 1744, 2071, 2698, 4142, 5396, 7739, 8284, 10792, 11881, 15478, 16568, 21584, 23762, 30956, 33136, 47524, 61912, 95048, 123824, 147041, 190096, 225739, 294082, 451478, 588164, 843551, 902956, 1176328, 1687102, 1805912, 2352656, 3374204, 3611824, 6748408, 13496816, 16027469, 32054938, 64109876, 128219752, 256439504]

約数ペア:

[(1, 256439504), (2, 128219752), (4, 64109876), (8, 32054938), (16, 16027469), (19, 13496816), (38, 6748408), (71, 3611824), (76, 3374204), (109, 2352656), (142, 1805912), (152, 1687102), (218, 1176328), (284, 902956), (304, 843551), (436, 588164), (568, 451478), (872, 294082), (1136, 225739), (1349, 190096), (1744, 147041), (2071, 123824), (2698, 95048), (4142, 61912), (5396, 47524), (7739, 33136), (8284, 30956), (10792, 23762), (11881, 21584), (15478, 16568)]