221511728

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{8779}}^1$

素因数の和:8889

約数の個数: 40

約数和(自身を含む): 457262400

約数和(自身を除く): 235750672

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 83, 152, 166, 304, 332, 664, 1328, 1577, 3154, 6308, 8779, 12616, 17558, 25232, 35116, 70232, 140464, 166801, 333602, 667204, 728657, 1334408, 1457314, 2668816, 2914628, 5829256, 11658512, 13844483, 27688966, 55377932, 110755864, 221511728]

約数ペア:

[(1, 221511728), (2, 110755864), (4, 55377932), (8, 27688966), (16, 13844483), (19, 11658512), (38, 5829256), (76, 2914628), (83, 2668816), (152, 1457314), (166, 1334408), (304, 728657), (332, 667204), (664, 333602), (1328, 166801), (1577, 140464), (3154, 70232), (6308, 35116), (8779, 25232), (12616, 17558)]