5281250

素因数分解:

$2^1\times 5^6\times {\mathrm{13}}^2$

素因数の和:58

約数の個数: 42

約数和(自身を含む): 10722519

約数和(自身を除く): 5441269

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 125, 130, 169, 250, 325, 338, 625, 650, 845, 1250, 1625, 1690, 3125, 3250, 4225, 6250, 8125, 8450, 15625, 16250, 21125, 31250, 40625, 42250, 81250, 105625, 203125, 211250, 406250, 528125, 1056250, 2640625, 5281250]

約数ペア:

[(1, 5281250), (2, 2640625), (5, 1056250), (10, 528125), (13, 406250), (25, 211250), (26, 203125), (50, 105625), (65, 81250), (125, 42250), (130, 40625), (169, 31250), (250, 21125), (325, 16250), (338, 15625), (625, 8450), (650, 8125), (845, 6250), (1250, 4225), (1625, 3250), (1690, 3125)]