20258390

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{269}}^1\times {\mathrm{443}}^1$

素因数の和:736

約数の個数: 32

約数和(自身を含む): 38841120

約数和(自身を除く): 18582730

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 269, 443, 538, 886, 1345, 2215, 2690, 4430, 4573, 7531, 9146, 15062, 22865, 37655, 45730, 75310, 119167, 238334, 595835, 1191670, 2025839, 4051678, 10129195, 20258390]

約数ペア:

[(1, 20258390), (2, 10129195), (5, 4051678), (10, 2025839), (17, 1191670), (34, 595835), (85, 238334), (170, 119167), (269, 75310), (443, 45730), (538, 37655), (886, 22865), (1345, 15062), (2215, 9146), (2690, 7531), (4430, 4573)]