621161875

素因数分解:

$5^4\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{797}}^1$

素因数の和:889

約数の個数: 40

約数和(自身を含む): 822674160

約数和(自身を除く): 201512285

約数列:

[1, 5, 25, 29, 43, 125, 145, 215, 625, 725, 797, 1075, 1247, 3625, 3985, 5375, 6235, 18125, 19925, 23113, 26875, 31175, 34271, 99625, 115565, 155875, 171355, 498125, 577825, 779375, 856775, 993859, 2889125, 4283875, 4969295, 14445625, 21419375, 24846475, 124232375, 621161875]

約数ペア:

[(1, 621161875), (5, 124232375), (25, 24846475), (29, 21419375), (43, 14445625), (125, 4969295), (145, 4283875), (215, 2889125), (625, 993859), (725, 856775), (797, 779375), (1075, 577825), (1247, 498125), (3625, 171355), (3985, 155875), (5375, 115565), (6235, 99625), (18125, 34271), (19925, 31175), (23113, 26875)]