1904315440

素因数分解:

$2^4\times 5^1\times {\mathrm{53}}^1\times {\mathrm{449131}}^1$

素因数の和:449197

約数の個数: 40

約数和(自身を含む): 4511081808

約数和(自身を除く): 2606766368

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 53, 80, 106, 212, 265, 424, 530, 848, 1060, 2120, 4240, 449131, 898262, 1796524, 2245655, 3593048, 4491310, 7186096, 8982620, 17965240, 23803943, 35930480, 47607886, 95215772, 119019715, 190431544, 238039430, 380863088, 476078860, 952157720, 1904315440]

約数ペア:

[(1, 1904315440), (2, 952157720), (4, 476078860), (5, 380863088), (8, 238039430), (10, 190431544), (16, 119019715), (20, 95215772), (40, 47607886), (53, 35930480), (80, 23803943), (106, 17965240), (212, 8982620), (265, 7186096), (424, 4491310), (530, 3593048), (848, 2245655), (1060, 1796524), (2120, 898262), (4240, 449131)]