280020130

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{487}}^1\times {\mathrm{4423}}^1$

素因数の和:4930

約数の個数: 32

約数和(自身を含む): 544045824

約数和(自身を除く): 264025694

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 487, 974, 2435, 4423, 4870, 6331, 8846, 12662, 22115, 31655, 44230, 57499, 63310, 114998, 287495, 574990, 2154001, 4308002, 10770005, 21540010, 28002013, 56004026, 140010065, 280020130]

約数ペア:

[(1, 280020130), (2, 140010065), (5, 56004026), (10, 28002013), (13, 21540010), (26, 10770005), (65, 4308002), (130, 2154001), (487, 574990), (974, 287495), (2435, 114998), (4423, 63310), (4870, 57499), (6331, 44230), (8846, 31655), (12662, 22115)]