20215839870

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{103}}^1\times {\mathrm{242309}}^1$

素因数の和:242431

約数の個数: 80

約数和(自身を含む): 54886122720

約数和(自身を除く): 34670282850

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 81, 90, 103, 135, 162, 206, 270, 309, 405, 515, 618, 810, 927, 1030, 1545, 1854, 2781, 3090, 4635, 5562, 8343, 9270, 13905, 16686, 27810, 41715, 83430, 242309, 484618, 726927, 1211545, 1453854, 2180781, 2423090, 3634635, 4361562, 6542343, 7269270, 10903905, 13084686, 19627029, 21807810, 24957827, 32711715, 39254058, 49915654, 65423430, 74873481, 98135145, 124789135, 149746962, 196270290, 224620443, 249578270, 374367405, 449240886, 673861329, 748734810, 1123102215, 1347722658, 2021583987, 2246204430, 3369306645, 4043167974, 6738613290, 10107919935, 20215839870]

約数ペア:

[(1, 20215839870), (2, 10107919935), (3, 6738613290), (5, 4043167974), (6, 3369306645), (9, 2246204430), (10, 2021583987), (15, 1347722658), (18, 1123102215), (27, 748734810), (30, 673861329), (45, 449240886), (54, 374367405), (81, 249578270), (90, 224620443), (103, 196270290), (135, 149746962), (162, 124789135), (206, 98135145), (270, 74873481), (309, 65423430), (405, 49915654), (515, 39254058), (618, 32711715), (810, 24957827), (927, 21807810), (1030, 19627029), (1545, 13084686), (1854, 10903905), (2781, 7269270), (3090, 6542343), (4635, 4361562), (5562, 3634635), (8343, 2423090), (9270, 2180781), (13905, 1453854), (16686, 1211545), (27810, 726927), (41715, 484618), (83430, 242309)]