20188759972

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{1811}}^1\times {\mathrm{2309}}^1$

素因数の和:4212

約数の個数: 48

約数和(自身を含む): 37972851840

約数和(自身を除く): 17784091868

約数列:

[1, 2, 4, 17, 34, 68, 71, 142, 284, 1207, 1811, 2309, 2414, 3622, 4618, 4828, 7244, 9236, 30787, 39253, 61574, 78506, 123148, 128581, 157012, 163939, 257162, 327878, 514324, 655756, 2185877, 2786963, 4181599, 4371754, 5573926, 8363198, 8743508, 11147852, 16726396, 71087183, 142174366, 284348732, 296893529, 593787058, 1187574116, 5047189993, 10094379986, 20188759972]

約数ペア:

[(1, 20188759972), (2, 10094379986), (4, 5047189993), (17, 1187574116), (34, 593787058), (68, 296893529), (71, 284348732), (142, 142174366), (284, 71087183), (1207, 16726396), (1811, 11147852), (2309, 8743508), (2414, 8363198), (3622, 5573926), (4618, 4371754), (4828, 4181599), (7244, 2786963), (9236, 2185877), (30787, 655756), (39253, 514324), (61574, 327878), (78506, 257162), (123148, 163939), (128581, 157012)]