258704

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1$

素因数の和:87

約数の個数: 40

約数和(自身を含む): 565440

約数和(自身を除く): 306736

約数列:

[1, 2, 4, 8, 16, 19, 23, 37, 38, 46, 74, 76, 92, 148, 152, 184, 296, 304, 368, 437, 592, 703, 851, 874, 1406, 1702, 1748, 2812, 3404, 3496, 5624, 6808, 6992, 11248, 13616, 16169, 32338, 64676, 129352, 258704]

約数ペア:

[(1, 258704), (2, 129352), (4, 64676), (8, 32338), (16, 16169), (19, 13616), (23, 11248), (37, 6992), (38, 6808), (46, 5624), (74, 3496), (76, 3404), (92, 2812), (148, 1748), (152, 1702), (184, 1406), (296, 874), (304, 851), (368, 703), (437, 592)]