254259920

素因数分解:

$2^4\times 5^1\times {\mathrm{79}}^1\times {\mathrm{40231}}^1$

素因数の和:40323

約数の個数: 40

約数和(自身を含む): 598652160

約数和(自身を除く): 344392240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 79, 80, 158, 316, 395, 632, 790, 1264, 1580, 3160, 6320, 40231, 80462, 160924, 201155, 321848, 402310, 643696, 804620, 1609240, 3178249, 3218480, 6356498, 12712996, 15891245, 25425992, 31782490, 50851984, 63564980, 127129960, 254259920]

約数ペア:

[(1, 254259920), (2, 127129960), (4, 63564980), (5, 50851984), (8, 31782490), (10, 25425992), (16, 15891245), (20, 12712996), (40, 6356498), (79, 3218480), (80, 3178249), (158, 1609240), (316, 804620), (395, 643696), (632, 402310), (790, 321848), (1264, 201155), (1580, 160924), (3160, 80462), (6320, 40231)]