628796840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{727}}^1\times {\mathrm{3089}}^1$

素因数の和:3834

約数の個数: 64

約数和(自身を含む): 1619654400

約数和(自身を除く): 990857560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 727, 1454, 2908, 3089, 3635, 5089, 5816, 6178, 7270, 10178, 12356, 14540, 15445, 20356, 21623, 24712, 25445, 29080, 30890, 40712, 43246, 50890, 61780, 86492, 101780, 108115, 123560, 172984, 203560, 216230, 432460, 864920, 2245703, 4491406, 8982812, 11228515, 15719921, 17965624, 22457030, 31439842, 44914060, 62879684, 78599605, 89828120, 125759368, 157199210, 314398420, 628796840]

約数ペア:

[(1, 628796840), (2, 314398420), (4, 157199210), (5, 125759368), (7, 89828120), (8, 78599605), (10, 62879684), (14, 44914060), (20, 31439842), (28, 22457030), (35, 17965624), (40, 15719921), (56, 11228515), (70, 8982812), (140, 4491406), (280, 2245703), (727, 864920), (1454, 432460), (2908, 216230), (3089, 203560), (3635, 172984), (5089, 123560), (5816, 108115), (6178, 101780), (7270, 86492), (10178, 61780), (12356, 50890), (14540, 43246), (15445, 40712), (20356, 30890), (21623, 29080), (24712, 25445)]