331338580

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{101}}^1\times {\mathrm{2689}}^1$

素因数の和:2860

約数の個数: 48

約数和(自身を含む): 714485520

約数和(自身を除く): 383146940

約数列:

[1, 2, 4, 5, 10, 20, 61, 101, 122, 202, 244, 305, 404, 505, 610, 1010, 1220, 2020, 2689, 5378, 6161, 10756, 12322, 13445, 24644, 26890, 30805, 53780, 61610, 123220, 164029, 271589, 328058, 543178, 656116, 820145, 1086356, 1357945, 1640290, 2715890, 3280580, 5431780, 16566929, 33133858, 66267716, 82834645, 165669290, 331338580]

約数ペア:

[(1, 331338580), (2, 165669290), (4, 82834645), (5, 66267716), (10, 33133858), (20, 16566929), (61, 5431780), (101, 3280580), (122, 2715890), (202, 1640290), (244, 1357945), (305, 1086356), (404, 820145), (505, 656116), (610, 543178), (1010, 328058), (1220, 271589), (2020, 164029), (2689, 123220), (5378, 61610), (6161, 53780), (10756, 30805), (12322, 26890), (13445, 24644)]