20186421712

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{151}}^1\times {\mathrm{439753}}^1$

素因数の和:439931

約数の個数: 40

約数和(自身を含む): 41442416960

約数和(自身を除く): 21255995248

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 151, 152, 302, 304, 604, 1208, 2416, 2869, 5738, 11476, 22952, 45904, 439753, 879506, 1759012, 3518024, 7036048, 8355307, 16710614, 33421228, 66402703, 66842456, 132805406, 133684912, 265610812, 531221624, 1062443248, 1261651357, 2523302714, 5046605428, 10093210856, 20186421712]

約数ペア:

[(1, 20186421712), (2, 10093210856), (4, 5046605428), (8, 2523302714), (16, 1261651357), (19, 1062443248), (38, 531221624), (76, 265610812), (151, 133684912), (152, 132805406), (302, 66842456), (304, 66402703), (604, 33421228), (1208, 16710614), (2416, 8355307), (2869, 7036048), (5738, 3518024), (11476, 1759012), (22952, 879506), (45904, 439753)]