25068220

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{1609}}^1$

素因数の和:1678

約数の個数: 48

約数和(自身を含む): 56800800

約数和(自身を除く): 31732580

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 41, 76, 82, 95, 164, 190, 205, 380, 410, 779, 820, 1558, 1609, 3116, 3218, 3895, 6436, 7790, 8045, 15580, 16090, 30571, 32180, 61142, 65969, 122284, 131938, 152855, 263876, 305710, 329845, 611420, 659690, 1253411, 1319380, 2506822, 5013644, 6267055, 12534110, 25068220]

約数ペア:

[(1, 25068220), (2, 12534110), (4, 6267055), (5, 5013644), (10, 2506822), (19, 1319380), (20, 1253411), (38, 659690), (41, 611420), (76, 329845), (82, 305710), (95, 263876), (164, 152855), (190, 131938), (205, 122284), (380, 65969), (410, 61142), (779, 32180), (820, 30571), (1558, 16090), (1609, 15580), (3116, 8045), (3218, 7790), (3895, 6436)]