30947980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{443}}^1\times {\mathrm{499}}^1$

素因数の和:958

約数の個数: 48

約数和(自身を含む): 74592000

約数和(自身を除く): 43644020

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 443, 499, 886, 998, 1772, 1996, 2215, 2495, 3101, 3493, 4430, 4990, 6202, 6986, 8860, 9980, 12404, 13972, 15505, 17465, 31010, 34930, 62020, 69860, 221057, 442114, 884228, 1105285, 1547399, 2210570, 3094798, 4421140, 6189596, 7736995, 15473990, 30947980]

約数ペア:

[(1, 30947980), (2, 15473990), (4, 7736995), (5, 6189596), (7, 4421140), (10, 3094798), (14, 2210570), (20, 1547399), (28, 1105285), (35, 884228), (70, 442114), (140, 221057), (443, 69860), (499, 62020), (886, 34930), (998, 31010), (1772, 17465), (1996, 15505), (2215, 13972), (2495, 12404), (3101, 9980), (3493, 8860), (4430, 6986), (4990, 6202)]