15720250

素因数分解:

$2^1\times 5^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{691}}^1$

素因数の和:728

約数の個数: 64

約数和(自身を含む): 36271872

約数和(自身を除く): 20551622

約数列:

[1, 2, 5, 7, 10, 13, 14, 25, 26, 35, 50, 65, 70, 91, 125, 130, 175, 182, 250, 325, 350, 455, 650, 691, 875, 910, 1382, 1625, 1750, 2275, 3250, 3455, 4550, 4837, 6910, 8983, 9674, 11375, 17275, 17966, 22750, 24185, 34550, 44915, 48370, 62881, 86375, 89830, 120925, 125762, 172750, 224575, 241850, 314405, 449150, 604625, 628810, 1122875, 1209250, 1572025, 2245750, 3144050, 7860125, 15720250]

約数ペア:

[(1, 15720250), (2, 7860125), (5, 3144050), (7, 2245750), (10, 1572025), (13, 1209250), (14, 1122875), (25, 628810), (26, 604625), (35, 449150), (50, 314405), (65, 241850), (70, 224575), (91, 172750), (125, 125762), (130, 120925), (175, 89830), (182, 86375), (250, 62881), (325, 48370), (350, 44915), (455, 34550), (650, 24185), (691, 22750), (875, 17966), (910, 17275), (1382, 11375), (1625, 9674), (1750, 8983), (2275, 6910), (3250, 4837), (3455, 4550)]