211250

素因数分解:

$2^1\times 5^4\times {\mathrm{13}}^2$

素因数の和:48

約数の個数: 30

約数和(自身を含む): 428769

約数和(自身を除く): 217519

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 125, 130, 169, 250, 325, 338, 625, 650, 845, 1250, 1625, 1690, 3250, 4225, 8125, 8450, 16250, 21125, 42250, 105625, 211250]

約数ペア:

[(1, 211250), (2, 105625), (5, 42250), (10, 21125), (13, 16250), (25, 8450), (26, 8125), (50, 4225), (65, 3250), (125, 1690), (130, 1625), (169, 1250), (250, 845), (325, 650), (338, 625)]