18490620

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{13399}}^1$

素因数の和:13434

約数の個数: 48

約数和(自身を含む): 54028800

約数和(自身を除く): 35538180

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 23, 30, 46, 60, 69, 92, 115, 138, 230, 276, 345, 460, 690, 1380, 13399, 26798, 40197, 53596, 66995, 80394, 133990, 160788, 200985, 267980, 308177, 401970, 616354, 803940, 924531, 1232708, 1540885, 1849062, 3081770, 3698124, 4622655, 6163540, 9245310, 18490620]

約数ペア:

[(1, 18490620), (2, 9245310), (3, 6163540), (4, 4622655), (5, 3698124), (6, 3081770), (10, 1849062), (12, 1540885), (15, 1232708), (20, 924531), (23, 803940), (30, 616354), (46, 401970), (60, 308177), (69, 267980), (92, 200985), (115, 160788), (138, 133990), (230, 80394), (276, 66995), (345, 53596), (460, 40197), (690, 26798), (1380, 13399)]