491130458

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{87049}}^1$

素因数の和:87102

約数の個数: 32

約数和(自身を含む): 935961600

約数和(自身を除く): 444831142

約数列:

[1, 2, 7, 13, 14, 26, 31, 62, 91, 182, 217, 403, 434, 806, 2821, 5642, 87049, 174098, 609343, 1131637, 1218686, 2263274, 2698519, 5397038, 7921459, 15842918, 18889633, 35080747, 37779266, 70161494, 245565229, 491130458]

約数ペア:

[(1, 491130458), (2, 245565229), (7, 70161494), (13, 37779266), (14, 35080747), (26, 18889633), (31, 15842918), (62, 7921459), (91, 5397038), (182, 2698519), (217, 2263274), (403, 1218686), (434, 1131637), (806, 609343), (2821, 174098), (5642, 87049)]