56659180

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{139}}^1\times {\mathrm{229}}^1$

素因数の和:466

約数の個数: 48

約数和(自身を含む): 121716000

約数和(自身を除く): 65056820

約数列:

[1, 2, 4, 5, 10, 20, 89, 139, 178, 229, 278, 356, 445, 458, 556, 695, 890, 916, 1145, 1390, 1780, 2290, 2780, 4580, 12371, 20381, 24742, 31831, 40762, 49484, 61855, 63662, 81524, 101905, 123710, 127324, 159155, 203810, 247420, 318310, 407620, 636620, 2832959, 5665918, 11331836, 14164795, 28329590, 56659180]

約数ペア:

[(1, 56659180), (2, 28329590), (4, 14164795), (5, 11331836), (10, 5665918), (20, 2832959), (89, 636620), (139, 407620), (178, 318310), (229, 247420), (278, 203810), (356, 159155), (445, 127324), (458, 123710), (556, 101905), (695, 81524), (890, 63662), (916, 61855), (1145, 49484), (1390, 40762), (1780, 31831), (2290, 24742), (2780, 20381), (4580, 12371)]