20181275125

素因数分解:

$5^3\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{24919}}^1$

素因数の和:24995

約数の個数: 64

約数和(自身を含む): 29856153600

約数和(自身を除く): 9674878475

約数列:

[1, 5, 11, 19, 25, 31, 55, 95, 125, 155, 209, 275, 341, 475, 589, 775, 1045, 1375, 1705, 2375, 2945, 3875, 5225, 6479, 8525, 14725, 24919, 26125, 32395, 42625, 73625, 124595, 161975, 274109, 473461, 622975, 772489, 809875, 1370545, 2367305, 3114875, 3862445, 5208071, 6852725, 8497379, 11836525, 14677291, 19312225, 26040355, 34263625, 42486895, 59182625, 73386455, 96561125, 130201775, 161450201, 212434475, 366932275, 651008875, 807251005, 1062172375, 1834661375, 4036255025, 20181275125]

約数ペア:

[(1, 20181275125), (5, 4036255025), (11, 1834661375), (19, 1062172375), (25, 807251005), (31, 651008875), (55, 366932275), (95, 212434475), (125, 161450201), (155, 130201775), (209, 96561125), (275, 73386455), (341, 59182625), (475, 42486895), (589, 34263625), (775, 26040355), (1045, 19312225), (1375, 14677291), (1705, 11836525), (2375, 8497379), (2945, 6852725), (3875, 5208071), (5225, 3862445), (6479, 3114875), (8525, 2367305), (14725, 1370545), (24919, 809875), (26125, 772489), (32395, 622975), (42625, 473461), (73625, 274109), (124595, 161975)]