20372500

素因数分解:

$2^2\times 5^4\times {\mathrm{29}}^1\times {\mathrm{281}}^1$

素因数の和:334

約数の個数: 60

約数和(自身を含む): 46250820

約数和(自身を除く): 25878320

約数列:

[1, 2, 4, 5, 10, 20, 25, 29, 50, 58, 100, 116, 125, 145, 250, 281, 290, 500, 562, 580, 625, 725, 1124, 1250, 1405, 1450, 2500, 2810, 2900, 3625, 5620, 7025, 7250, 8149, 14050, 14500, 16298, 18125, 28100, 32596, 35125, 36250, 40745, 70250, 72500, 81490, 140500, 162980, 175625, 203725, 351250, 407450, 702500, 814900, 1018625, 2037250, 4074500, 5093125, 10186250, 20372500]

約数ペア:

[(1, 20372500), (2, 10186250), (4, 5093125), (5, 4074500), (10, 2037250), (20, 1018625), (25, 814900), (29, 702500), (50, 407450), (58, 351250), (100, 203725), (116, 175625), (125, 162980), (145, 140500), (250, 81490), (281, 72500), (290, 70250), (500, 40745), (562, 36250), (580, 35125), (625, 32596), (725, 28100), (1124, 18125), (1250, 16298), (1405, 14500), (1450, 14050), (2500, 8149), (2810, 7250), (2900, 7025), (3625, 5620)]