20492520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{389}}^1\times {\mathrm{439}}^1$

素因数の和:842

約数の個数: 64

約数和(自身を含む): 61776000

約数和(自身を除く): 41283480

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 389, 439, 778, 878, 1167, 1317, 1556, 1756, 1945, 2195, 2334, 2634, 3112, 3512, 3890, 4390, 4668, 5268, 5835, 6585, 7780, 8780, 9336, 10536, 11670, 13170, 15560, 17560, 23340, 26340, 46680, 52680, 170771, 341542, 512313, 683084, 853855, 1024626, 1366168, 1707710, 2049252, 2561565, 3415420, 4098504, 5123130, 6830840, 10246260, 20492520]

約数ペア:

[(1, 20492520), (2, 10246260), (3, 6830840), (4, 5123130), (5, 4098504), (6, 3415420), (8, 2561565), (10, 2049252), (12, 1707710), (15, 1366168), (20, 1024626), (24, 853855), (30, 683084), (40, 512313), (60, 341542), (120, 170771), (389, 52680), (439, 46680), (778, 26340), (878, 23340), (1167, 17560), (1317, 15560), (1556, 13170), (1756, 11670), (1945, 10536), (2195, 9336), (2334, 8780), (2634, 7780), (3112, 6585), (3512, 5835), (3890, 5268), (4390, 4668)]