20123992875

素因数分解:

$3^1\times 5^3\times 7^1\times {\mathrm{59}}^1\times {\mathrm{129937}}^1$

素因数の和:130021

約数の個数: 64

約数和(自身を含む): 38919029760

約数和(自身を除く): 18795036885

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 59, 75, 105, 125, 175, 177, 295, 375, 413, 525, 875, 885, 1239, 1475, 2065, 2625, 4425, 6195, 7375, 10325, 22125, 30975, 51625, 129937, 154875, 389811, 649685, 909559, 1949055, 2728677, 3248425, 4547795, 7666283, 9745275, 13643385, 16242125, 22738975, 22998849, 38331415, 48726375, 53663981, 68216925, 113694875, 114994245, 160991943, 191657075, 268319905, 341084625, 574971225, 804959715, 958285375, 1341599525, 2874856125, 4024798575, 6707997625, 20123992875]

約数ペア:

[(1, 20123992875), (3, 6707997625), (5, 4024798575), (7, 2874856125), (15, 1341599525), (21, 958285375), (25, 804959715), (35, 574971225), (59, 341084625), (75, 268319905), (105, 191657075), (125, 160991943), (175, 114994245), (177, 113694875), (295, 68216925), (375, 53663981), (413, 48726375), (525, 38331415), (875, 22998849), (885, 22738975), (1239, 16242125), (1475, 13643385), (2065, 9745275), (2625, 7666283), (4425, 4547795), (6195, 3248425), (7375, 2728677), (10325, 1949055), (22125, 909559), (30975, 649685), (51625, 389811), (129937, 154875)]