249553640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{12553}}^1$

素因数の和:12642

約数の個数: 64

約数和(自身を含む): 650799360

約数和(自身を除く): 401245720

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 71, 140, 142, 280, 284, 355, 497, 568, 710, 994, 1420, 1988, 2485, 2840, 3976, 4970, 9940, 12553, 19880, 25106, 50212, 62765, 87871, 100424, 125530, 175742, 251060, 351484, 439355, 502120, 702968, 878710, 891263, 1757420, 1782526, 3514840, 3565052, 4456315, 6238841, 7130104, 8912630, 12477682, 17825260, 24955364, 31194205, 35650520, 49910728, 62388410, 124776820, 249553640]

約数ペア:

[(1, 249553640), (2, 124776820), (4, 62388410), (5, 49910728), (7, 35650520), (8, 31194205), (10, 24955364), (14, 17825260), (20, 12477682), (28, 8912630), (35, 7130104), (40, 6238841), (56, 4456315), (70, 3565052), (71, 3514840), (140, 1782526), (142, 1757420), (280, 891263), (284, 878710), (355, 702968), (497, 502120), (568, 439355), (710, 351484), (994, 251060), (1420, 175742), (1988, 125530), (2485, 100424), (2840, 87871), (3976, 62765), (4970, 50212), (9940, 25106), (12553, 19880)]