257173368

素因数分解:

$2^3\times 3^1\times {\mathrm{43}}^1\times {\mathrm{249199}}^1$

素因数の和:249251

約数の個数: 32

約数和(自身を含む): 657888000

約数和(自身を除く): 400714632

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 43, 86, 129, 172, 258, 344, 516, 1032, 249199, 498398, 747597, 996796, 1495194, 1993592, 2990388, 5980776, 10715557, 21431114, 32146671, 42862228, 64293342, 85724456, 128586684, 257173368]

約数ペア:

[(1, 257173368), (2, 128586684), (3, 85724456), (4, 64293342), (6, 42862228), (8, 32146671), (12, 21431114), (24, 10715557), (43, 5980776), (86, 2990388), (129, 1993592), (172, 1495194), (258, 996796), (344, 747597), (516, 498398), (1032, 249199)]