20557250

素因数分解:

$2^1\times 5^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{691}}^1$

素因数の和:732

約数の個数: 64

約数和(自身を含む): 46635264

約数和(自身を除く): 26078014

約数列:

[1, 2, 5, 7, 10, 14, 17, 25, 34, 35, 50, 70, 85, 119, 125, 170, 175, 238, 250, 350, 425, 595, 691, 850, 875, 1190, 1382, 1750, 2125, 2975, 3455, 4250, 4837, 5950, 6910, 9674, 11747, 14875, 17275, 23494, 24185, 29750, 34550, 48370, 58735, 82229, 86375, 117470, 120925, 164458, 172750, 241850, 293675, 411145, 587350, 604625, 822290, 1209250, 1468375, 2055725, 2936750, 4111450, 10278625, 20557250]

約数ペア:

[(1, 20557250), (2, 10278625), (5, 4111450), (7, 2936750), (10, 2055725), (14, 1468375), (17, 1209250), (25, 822290), (34, 604625), (35, 587350), (50, 411145), (70, 293675), (85, 241850), (119, 172750), (125, 164458), (170, 120925), (175, 117470), (238, 86375), (250, 82229), (350, 58735), (425, 48370), (595, 34550), (691, 29750), (850, 24185), (875, 23494), (1190, 17275), (1382, 14875), (1750, 11747), (2125, 9674), (2975, 6910), (3455, 5950), (4250, 4837)]