20388276

素因数分解:

$2^2\times 3^2\times {\mathrm{29}}^1\times {\mathrm{59}}^1\times {\mathrm{331}}^1$

素因数の和:429

約数の個数: 72

約数和(自身を含む): 54381600

約数和(自身を除く): 33993324

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 29, 36, 58, 59, 87, 116, 118, 174, 177, 236, 261, 331, 348, 354, 522, 531, 662, 708, 993, 1044, 1062, 1324, 1711, 1986, 2124, 2979, 3422, 3972, 5133, 5958, 6844, 9599, 10266, 11916, 15399, 19198, 19529, 20532, 28797, 30798, 38396, 39058, 57594, 58587, 61596, 78116, 86391, 115188, 117174, 172782, 175761, 234348, 345564, 351522, 566341, 703044, 1132682, 1699023, 2265364, 3398046, 5097069, 6796092, 10194138, 20388276]

約数ペア:

[(1, 20388276), (2, 10194138), (3, 6796092), (4, 5097069), (6, 3398046), (9, 2265364), (12, 1699023), (18, 1132682), (29, 703044), (36, 566341), (58, 351522), (59, 345564), (87, 234348), (116, 175761), (118, 172782), (174, 117174), (177, 115188), (236, 86391), (261, 78116), (331, 61596), (348, 58587), (354, 57594), (522, 39058), (531, 38396), (662, 30798), (708, 28797), (993, 20532), (1044, 19529), (1062, 19198), (1324, 15399), (1711, 11916), (1986, 10266), (2124, 9599), (2979, 6844), (3422, 5958), (3972, 5133)]