284809.0000000

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{139}}^1$

素因数の和:252

約数の個数: 64

約数和(自身を含む): 15876000

約数和(自身を除く): 9443080

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 89, 104, 130, 139, 178, 260, 278, 356, 445, 520, 556, 695, 712, 890, 1112, 1157, 1390, 1780, 1807, 2314, 2780, 3560, 3614, 4628, 5560, 5785, 7228, 9035, 9256, 11570, 12371, 14456, 18070, 23140, 24742, 36140, 46280, 49484, 61855, 72280, 98968, 123710, 160823, 247420, 321646, 494840, 643292, 804115, 1286584, 1608230, 3216460, 6432920]

約数ペア:

[(1, 6432920), (2, 3216460), (4, 1608230), (5, 1286584), (8, 804115), (10, 643292), (13, 494840), (20, 321646), (26, 247420), (40, 160823), (52, 123710), (65, 98968), (89, 72280), (104, 61855), (130, 49484), (139, 46280), (178, 36140), (260, 24742), (278, 23140), (356, 18070), (445, 14456), (520, 12371), (556, 11570), (695, 9256), (712, 9035), (890, 7228), (1112, 5785), (1157, 5560), (1390, 4628), (1780, 3614), (1807, 3560), (2314, 2780)]