30107980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{1973}}^1$

素因数の和:2098

約数の個数: 48

約数和(自身を含む): 72959040

約数和(自身を除く): 42851060

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 109, 140, 218, 436, 545, 763, 1090, 1526, 1973, 2180, 3052, 3815, 3946, 7630, 7892, 9865, 13811, 15260, 19730, 27622, 39460, 55244, 69055, 138110, 215057, 276220, 430114, 860228, 1075285, 1505399, 2150570, 3010798, 4301140, 6021596, 7526995, 15053990, 30107980]

約数ペア:

[(1, 30107980), (2, 15053990), (4, 7526995), (5, 6021596), (7, 4301140), (10, 3010798), (14, 2150570), (20, 1505399), (28, 1075285), (35, 860228), (70, 430114), (109, 276220), (140, 215057), (218, 138110), (436, 69055), (545, 55244), (763, 39460), (1090, 27622), (1526, 19730), (1973, 15260), (2180, 13811), (3052, 9865), (3815, 7892), (3946, 7630)]