20917500

素因数分解:

$2^2\times 3^1\times 5^4\times {\mathrm{2789}}^1$

素因数の和:2816

約数の個数: 60

約数和(自身を含む): 61011720

約数和(自身を除く): 40094220

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 50, 60, 75, 100, 125, 150, 250, 300, 375, 500, 625, 750, 1250, 1500, 1875, 2500, 2789, 3750, 5578, 7500, 8367, 11156, 13945, 16734, 27890, 33468, 41835, 55780, 69725, 83670, 139450, 167340, 209175, 278900, 348625, 418350, 697250, 836700, 1045875, 1394500, 1743125, 2091750, 3486250, 4183500, 5229375, 6972500, 10458750, 20917500]

約数ペア:

[(1, 20917500), (2, 10458750), (3, 6972500), (4, 5229375), (5, 4183500), (6, 3486250), (10, 2091750), (12, 1743125), (15, 1394500), (20, 1045875), (25, 836700), (30, 697250), (50, 418350), (60, 348625), (75, 278900), (100, 209175), (125, 167340), (150, 139450), (250, 83670), (300, 69725), (375, 55780), (500, 41835), (625, 33468), (750, 27890), (1250, 16734), (1500, 13945), (1875, 11156), (2500, 8367), (2789, 7500), (3750, 5578)]