17925625

素因数分解:

$5^4\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1$

素因数の和:115

約数の個数: 40

約数和(自身を含む): 24742080

約数和(自身を除く): 6816455

約数列:

[1, 5, 23, 25, 29, 43, 115, 125, 145, 215, 575, 625, 667, 725, 989, 1075, 1247, 2875, 3335, 3625, 4945, 5375, 6235, 14375, 16675, 18125, 24725, 26875, 28681, 31175, 83375, 123625, 143405, 155875, 416875, 618125, 717025, 779375, 3585125, 17925625]

約数ペア:

[(1, 17925625), (5, 3585125), (23, 779375), (25, 717025), (29, 618125), (43, 416875), (115, 155875), (125, 143405), (145, 123625), (215, 83375), (575, 31175), (625, 28681), (667, 26875), (725, 24725), (989, 18125), (1075, 16675), (1247, 14375), (2875, 6235), (3335, 5375), (3625, 4945)]