8880380

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{251}}^1$

素因数の和:350

約数の個数: 48

約数和(自身を含む): 19686240

約数和(自身を除く): 10805860

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 61, 116, 122, 145, 244, 251, 290, 305, 502, 580, 610, 1004, 1220, 1255, 1769, 2510, 3538, 5020, 7076, 7279, 8845, 14558, 15311, 17690, 29116, 30622, 35380, 36395, 61244, 72790, 76555, 145580, 153110, 306220, 444019, 888038, 1776076, 2220095, 4440190, 8880380]

約数ペア:

[(1, 8880380), (2, 4440190), (4, 2220095), (5, 1776076), (10, 888038), (20, 444019), (29, 306220), (58, 153110), (61, 145580), (116, 76555), (122, 72790), (145, 61244), (244, 36395), (251, 35380), (290, 30622), (305, 29116), (502, 17690), (580, 15311), (610, 14558), (1004, 8845), (1220, 7279), (1255, 7076), (1769, 5020), (2510, 3538)]