20130804460

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{389}}^1\times {\mathrm{199039}}^1$

素因数の和:199450

約数の個数: 48

約数和(自身を含む): 45643852800

約数和(自身を除く): 25513048340

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 389, 778, 1556, 1945, 3890, 5057, 7780, 10114, 20228, 25285, 50570, 101140, 199039, 398078, 796156, 995195, 1990390, 2587507, 3980780, 5175014, 10350028, 12937535, 25875070, 51750140, 77426171, 154852342, 309704684, 387130855, 774261710, 1006540223, 1548523420, 2013080446, 4026160892, 5032701115, 10065402230, 20130804460]

約数ペア:

[(1, 20130804460), (2, 10065402230), (4, 5032701115), (5, 4026160892), (10, 2013080446), (13, 1548523420), (20, 1006540223), (26, 774261710), (52, 387130855), (65, 309704684), (130, 154852342), (260, 77426171), (389, 51750140), (778, 25875070), (1556, 12937535), (1945, 10350028), (3890, 5175014), (5057, 3980780), (7780, 2587507), (10114, 1990390), (20228, 995195), (25285, 796156), (50570, 398078), (101140, 199039)]