2087420

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{59}}^1\times {\mathrm{61}}^1$

素因数の和:158

約数の個数: 48

約数和(自身を含む): 4687200

約数和(自身を除く): 2599780

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 59, 61, 116, 118, 122, 145, 236, 244, 290, 295, 305, 580, 590, 610, 1180, 1220, 1711, 1769, 3422, 3538, 3599, 6844, 7076, 7198, 8555, 8845, 14396, 17110, 17690, 17995, 34220, 35380, 35990, 71980, 104371, 208742, 417484, 521855, 1043710, 2087420]

約数ペア:

[(1, 2087420), (2, 1043710), (4, 521855), (5, 417484), (10, 208742), (20, 104371), (29, 71980), (58, 35990), (59, 35380), (61, 34220), (116, 17995), (118, 17690), (122, 17110), (145, 14396), (236, 8845), (244, 8555), (290, 7198), (295, 7076), (305, 6844), (580, 3599), (590, 3538), (610, 3422), (1180, 1769), (1220, 1711)]