51780060

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{31963}}^1$

素因数の和:31984

約数の個数: 60

約数和(自身を含む): 162441048

約数和(自身を除く): 110660988

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 270, 324, 405, 540, 810, 1620, 31963, 63926, 95889, 127852, 159815, 191778, 287667, 319630, 383556, 479445, 575334, 639260, 863001, 958890, 1150668, 1438335, 1726002, 1917780, 2589003, 2876670, 3452004, 4315005, 5178006, 5753340, 8630010, 10356012, 12945015, 17260020, 25890030, 51780060]

約数ペア:

[(1, 51780060), (2, 25890030), (3, 17260020), (4, 12945015), (5, 10356012), (6, 8630010), (9, 5753340), (10, 5178006), (12, 4315005), (15, 3452004), (18, 2876670), (20, 2589003), (27, 1917780), (30, 1726002), (36, 1438335), (45, 1150668), (54, 958890), (60, 863001), (81, 639260), (90, 575334), (108, 479445), (135, 383556), (162, 319630), (180, 287667), (270, 191778), (324, 159815), (405, 127852), (540, 95889), (810, 63926), (1620, 31963)]