20466750

素因数分解:

$2^1\times 3^1\times 5^3\times {\mathrm{29}}^1\times {\mathrm{941}}^1$

素因数の和:990

約数の個数: 64

約数和(自身を含む): 52902720

約数和(自身を除く): 32435970

約数列:

[1, 2, 3, 5, 6, 10, 15, 25, 29, 30, 50, 58, 75, 87, 125, 145, 150, 174, 250, 290, 375, 435, 725, 750, 870, 941, 1450, 1882, 2175, 2823, 3625, 4350, 4705, 5646, 7250, 9410, 10875, 14115, 21750, 23525, 27289, 28230, 47050, 54578, 70575, 81867, 117625, 136445, 141150, 163734, 235250, 272890, 352875, 409335, 682225, 705750, 818670, 1364450, 2046675, 3411125, 4093350, 6822250, 10233375, 20466750]

約数ペア:

[(1, 20466750), (2, 10233375), (3, 6822250), (5, 4093350), (6, 3411125), (10, 2046675), (15, 1364450), (25, 818670), (29, 705750), (30, 682225), (50, 409335), (58, 352875), (75, 272890), (87, 235250), (125, 163734), (145, 141150), (150, 136445), (174, 117625), (250, 81867), (290, 70575), (375, 54578), (435, 47050), (725, 28230), (750, 27289), (870, 23525), (941, 21750), (1450, 14115), (1882, 10875), (2175, 9410), (2823, 7250), (3625, 5646), (4350, 4705)]