20178697785

素因数分解:

$3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{383}}^1\times {\mathrm{3907}}^1$

素因数の和:4358

約数の個数: 64

約数和(自身を含む): 34575482880

約数和(自身を除く): 14396785095

約数列:

[1, 3, 5, 15, 29, 31, 87, 93, 145, 155, 383, 435, 465, 899, 1149, 1915, 2697, 3907, 4495, 5745, 11107, 11721, 11873, 13485, 19535, 33321, 35619, 55535, 58605, 59365, 113303, 121117, 166605, 178095, 339909, 344317, 363351, 566515, 605585, 1032951, 1496381, 1699545, 1721585, 1816755, 3512393, 4489143, 5164755, 7481905, 10537179, 17561965, 22445715, 43395049, 46387811, 52685895, 130185147, 139163433, 216975245, 231939055, 650925735, 695817165, 1345246519, 4035739557, 6726232595, 20178697785]

約数ペア:

[(1, 20178697785), (3, 6726232595), (5, 4035739557), (15, 1345246519), (29, 695817165), (31, 650925735), (87, 231939055), (93, 216975245), (145, 139163433), (155, 130185147), (383, 52685895), (435, 46387811), (465, 43395049), (899, 22445715), (1149, 17561965), (1915, 10537179), (2697, 7481905), (3907, 5164755), (4495, 4489143), (5745, 3512393), (11107, 1816755), (11721, 1721585), (11873, 1699545), (13485, 1496381), (19535, 1032951), (33321, 605585), (35619, 566515), (55535, 363351), (58605, 344317), (59365, 339909), (113303, 178095), (121117, 166605)]