20984520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{5641}}^1$

素因数の和:5686

約数の個数: 64

約数和(自身を含む): 64995840

約数和(自身を除く): 44011320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 31, 40, 60, 62, 93, 120, 124, 155, 186, 248, 310, 372, 465, 620, 744, 930, 1240, 1860, 3720, 5641, 11282, 16923, 22564, 28205, 33846, 45128, 56410, 67692, 84615, 112820, 135384, 169230, 174871, 225640, 338460, 349742, 524613, 676920, 699484, 874355, 1049226, 1398968, 1748710, 2098452, 2623065, 3497420, 4196904, 5246130, 6994840, 10492260, 20984520]

約数ペア:

[(1, 20984520), (2, 10492260), (3, 6994840), (4, 5246130), (5, 4196904), (6, 3497420), (8, 2623065), (10, 2098452), (12, 1748710), (15, 1398968), (20, 1049226), (24, 874355), (30, 699484), (31, 676920), (40, 524613), (60, 349742), (62, 338460), (93, 225640), (120, 174871), (124, 169230), (155, 135384), (186, 112820), (248, 84615), (310, 67692), (372, 56410), (465, 45128), (620, 33846), (744, 28205), (930, 22564), (1240, 16923), (1860, 11282), (3720, 5641)]