20802456

素因数分解:

$2^3\times 3^2\times {\mathrm{59}}^2\times {\mathrm{83}}^1$

素因数の和:213

約数の個数: 72

約数和(自身を含む): 58001580

約数和(自身を除く): 37199124

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 59, 72, 83, 118, 166, 177, 236, 249, 332, 354, 472, 498, 531, 664, 708, 747, 996, 1062, 1416, 1494, 1992, 2124, 2988, 3481, 4248, 4897, 5976, 6962, 9794, 10443, 13924, 14691, 19588, 20886, 27848, 29382, 31329, 39176, 41772, 44073, 58764, 62658, 83544, 88146, 117528, 125316, 176292, 250632, 288923, 352584, 577846, 866769, 1155692, 1733538, 2311384, 2600307, 3467076, 5200614, 6934152, 10401228, 20802456]

約数ペア:

[(1, 20802456), (2, 10401228), (3, 6934152), (4, 5200614), (6, 3467076), (8, 2600307), (9, 2311384), (12, 1733538), (18, 1155692), (24, 866769), (36, 577846), (59, 352584), (72, 288923), (83, 250632), (118, 176292), (166, 125316), (177, 117528), (236, 88146), (249, 83544), (332, 62658), (354, 58764), (472, 44073), (498, 41772), (531, 39176), (664, 31329), (708, 29382), (747, 27848), (996, 20886), (1062, 19588), (1416, 14691), (1494, 13924), (1992, 10443), (2124, 9794), (2988, 6962), (3481, 5976), (4248, 4897)]