20129384072

素因数分解:

$2^3\times 7^1\times {\mathrm{17}}^2\times {\mathrm{1243783}}^1$

素因数の和:1243830

約数の個数: 48

約数和(自身を含む): 45821002560

約数和(自身を除く): 25691618488

約数列:

[1, 2, 4, 7, 8, 14, 17, 28, 34, 56, 68, 119, 136, 238, 289, 476, 578, 952, 1156, 2023, 2312, 4046, 8092, 16184, 1243783, 2487566, 4975132, 8706481, 9950264, 17412962, 21144311, 34825924, 42288622, 69651848, 84577244, 148010177, 169154488, 296020354, 359453287, 592040708, 718906574, 1184081416, 1437813148, 2516173009, 2875626296, 5032346018, 10064692036, 20129384072]

約数ペア:

[(1, 20129384072), (2, 10064692036), (4, 5032346018), (7, 2875626296), (8, 2516173009), (14, 1437813148), (17, 1184081416), (28, 718906574), (34, 592040708), (56, 359453287), (68, 296020354), (119, 169154488), (136, 148010177), (238, 84577244), (289, 69651848), (476, 42288622), (578, 34825924), (952, 21144311), (1156, 17412962), (2023, 9950264), (2312, 8706481), (4046, 4975132), (8092, 2487566), (16184, 1243783)]