20178036875

素因数分解:

$5^4\times {\mathrm{29}}^1\times {\mathrm{59}}^1\times {\mathrm{18869}}^1$

素因数の和:18977

約数の個数: 40

約数和(自身を含む): 26527446000

約数和(自身を除く): 6349409125

約数列:

[1, 5, 25, 29, 59, 125, 145, 295, 625, 725, 1475, 1711, 3625, 7375, 8555, 18125, 18869, 36875, 42775, 94345, 213875, 471725, 547201, 1069375, 1113271, 2358625, 2736005, 5566355, 11793125, 13680025, 27831775, 32284859, 68400125, 139158875, 161424295, 342000625, 695794375, 807121475, 4035607375, 20178036875]

約数ペア:

[(1, 20178036875), (5, 4035607375), (25, 807121475), (29, 695794375), (59, 342000625), (125, 161424295), (145, 139158875), (295, 68400125), (625, 32284859), (725, 27831775), (1475, 13680025), (1711, 11793125), (3625, 5566355), (7375, 2736005), (8555, 2358625), (18125, 1113271), (18869, 1069375), (36875, 547201), (42775, 471725), (94345, 213875)]