21998600

素因数分解:

$2^3\times 5^2\times {\mathrm{13}}^1\times {\mathrm{8461}}^1$

素因数の和:8490

約数の個数: 48

約数和(自身を含む): 55087620

約数和(自身を除く): 33089020

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 40, 50, 52, 65, 100, 104, 130, 200, 260, 325, 520, 650, 1300, 2600, 8461, 16922, 33844, 42305, 67688, 84610, 109993, 169220, 211525, 219986, 338440, 423050, 439972, 549965, 846100, 879944, 1099930, 1692200, 2199860, 2749825, 4399720, 5499650, 10999300, 21998600]

約数ペア:

[(1, 21998600), (2, 10999300), (4, 5499650), (5, 4399720), (8, 2749825), (10, 2199860), (13, 1692200), (20, 1099930), (25, 879944), (26, 846100), (40, 549965), (50, 439972), (52, 423050), (65, 338440), (100, 219986), (104, 211525), (130, 169220), (200, 109993), (260, 84610), (325, 67688), (520, 42305), (650, 33844), (1300, 16922), (2600, 8461)]