8890472020

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{754709}}^1$

素因数の和:754768

約数の個数: 48

約数和(自身を含む): 20286604800

約数和(自身を除く): 11396132780

約数列:

[1, 2, 4, 5, 10, 19, 20, 31, 38, 62, 76, 95, 124, 155, 190, 310, 380, 589, 620, 1178, 2356, 2945, 5890, 11780, 754709, 1509418, 3018836, 3773545, 7547090, 14339471, 15094180, 23395979, 28678942, 46791958, 57357884, 71697355, 93583916, 116979895, 143394710, 233959790, 286789420, 444523601, 467919580, 889047202, 1778094404, 2222618005, 4445236010, 8890472020]

約数ペア:

[(1, 8890472020), (2, 4445236010), (4, 2222618005), (5, 1778094404), (10, 889047202), (19, 467919580), (20, 444523601), (31, 286789420), (38, 233959790), (62, 143394710), (76, 116979895), (95, 93583916), (124, 71697355), (155, 57357884), (190, 46791958), (310, 28678942), (380, 23395979), (589, 15094180), (620, 14339471), (1178, 7547090), (2356, 3773545), (2945, 3018836), (5890, 1509418), (11780, 754709)]