2720898875

素因数分解:

$5^3\times {\mathrm{17}}^2\times {\mathrm{109}}^1\times {\mathrm{691}}^1$

素因数の和:849

約数の個数: 48

約数和(自身を含む): 3645539040

約数和(自身を除く): 924640165

約数列:

[1, 5, 17, 25, 85, 109, 125, 289, 425, 545, 691, 1445, 1853, 2125, 2725, 3455, 7225, 9265, 11747, 13625, 17275, 31501, 36125, 46325, 58735, 75319, 86375, 157505, 199699, 231625, 293675, 376595, 787525, 998495, 1280423, 1468375, 1882975, 3937625, 4992475, 6402115, 9414875, 21767191, 24962375, 32010575, 108835955, 160052875, 544179775, 2720898875]

約数ペア:

[(1, 2720898875), (5, 544179775), (17, 160052875), (25, 108835955), (85, 32010575), (109, 24962375), (125, 21767191), (289, 9414875), (425, 6402115), (545, 4992475), (691, 3937625), (1445, 1882975), (1853, 1468375), (2125, 1280423), (2725, 998495), (3455, 787525), (7225, 376595), (9265, 293675), (11747, 231625), (13625, 199699), (17275, 157505), (31501, 86375), (36125, 75319), (46325, 58735)]