2112500

素因数分解:

$2^2\times 5^5\times {\mathrm{13}}^2$

素因数の和:55

約数の個数: 54

約数和(自身を含む): 5003586

約数和(自身を除く): 2891086

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 125, 130, 169, 250, 260, 325, 338, 500, 625, 650, 676, 845, 1250, 1300, 1625, 1690, 2500, 3125, 3250, 3380, 4225, 6250, 6500, 8125, 8450, 12500, 16250, 16900, 21125, 32500, 40625, 42250, 81250, 84500, 105625, 162500, 211250, 422500, 528125, 1056250, 2112500]

約数ペア:

[(1, 2112500), (2, 1056250), (4, 528125), (5, 422500), (10, 211250), (13, 162500), (20, 105625), (25, 84500), (26, 81250), (50, 42250), (52, 40625), (65, 32500), (100, 21125), (125, 16900), (130, 16250), (169, 12500), (250, 8450), (260, 8125), (325, 6500), (338, 6250), (500, 4225), (625, 3380), (650, 3250), (676, 3125), (845, 2500), (1250, 1690), (1300, 1625)]