214706920

素因数分解:

$2^3\times 5^1\times {\mathrm{157}}^1\times {\mathrm{179}}^1\times {\mathrm{191}}^1$

素因数の和:538

約数の個数: 64

約数和(自身を含む): 491443200

約数和(自身を除く): 276736280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 157, 179, 191, 314, 358, 382, 628, 716, 764, 785, 895, 955, 1256, 1432, 1528, 1570, 1790, 1910, 3140, 3580, 3820, 6280, 7160, 7640, 28103, 29987, 34189, 56206, 59974, 68378, 112412, 119948, 136756, 140515, 149935, 170945, 224824, 239896, 273512, 281030, 299870, 341890, 562060, 599740, 683780, 1124120, 1199480, 1367560, 5367673, 10735346, 21470692, 26838365, 42941384, 53676730, 107353460, 214706920]

約数ペア:

[(1, 214706920), (2, 107353460), (4, 53676730), (5, 42941384), (8, 26838365), (10, 21470692), (20, 10735346), (40, 5367673), (157, 1367560), (179, 1199480), (191, 1124120), (314, 683780), (358, 599740), (382, 562060), (628, 341890), (716, 299870), (764, 281030), (785, 273512), (895, 239896), (955, 224824), (1256, 170945), (1432, 149935), (1528, 140515), (1570, 136756), (1790, 119948), (1910, 112412), (3140, 68378), (3580, 59974), (3820, 56206), (6280, 34189), (7160, 29987), (7640, 28103)]