20947620

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{109}}^1\times {\mathrm{3203}}^1$

素因数の和:3324

約数の個数: 48

約数和(自身を含む): 59209920

約数和(自身を除く): 38262300

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 109, 218, 327, 436, 545, 654, 1090, 1308, 1635, 2180, 3203, 3270, 6406, 6540, 9609, 12812, 16015, 19218, 32030, 38436, 48045, 64060, 96090, 192180, 349127, 698254, 1047381, 1396508, 1745635, 2094762, 3491270, 4189524, 5236905, 6982540, 10473810, 20947620]

約数ペア:

[(1, 20947620), (2, 10473810), (3, 6982540), (4, 5236905), (5, 4189524), (6, 3491270), (10, 2094762), (12, 1745635), (15, 1396508), (20, 1047381), (30, 698254), (60, 349127), (109, 192180), (218, 96090), (327, 64060), (436, 48045), (545, 38436), (654, 32030), (1090, 19218), (1308, 16015), (1635, 12812), (2180, 9609), (3203, 6540), (3270, 6406)]