20631390

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{52901}}^1$

素因数の和:52924

約数の個数: 32

約数和(自身を含む): 53325216

約数和(自身を除く): 32693826

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 52901, 105802, 158703, 264505, 317406, 529010, 687713, 793515, 1375426, 1587030, 2063139, 3438565, 4126278, 6877130, 10315695, 20631390]

約数ペア:

[(1, 20631390), (2, 10315695), (3, 6877130), (5, 4126278), (6, 3438565), (10, 2063139), (13, 1587030), (15, 1375426), (26, 793515), (30, 687713), (39, 529010), (65, 317406), (78, 264505), (130, 158703), (195, 105802), (390, 52901)]