20836760

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{10631}}^1$

素因数の和:10656

約数の個数: 48

約数和(自身を含む): 54542160

約数和(自身を除く): 33705400

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 10631, 21262, 42524, 53155, 74417, 85048, 106310, 148834, 212620, 297668, 372085, 425240, 520919, 595336, 744170, 1041838, 1488340, 2083676, 2604595, 2976680, 4167352, 5209190, 10418380, 20836760]

約数ペア:

[(1, 20836760), (2, 10418380), (4, 5209190), (5, 4167352), (7, 2976680), (8, 2604595), (10, 2083676), (14, 1488340), (20, 1041838), (28, 744170), (35, 595336), (40, 520919), (49, 425240), (56, 372085), (70, 297668), (98, 212620), (140, 148834), (196, 106310), (245, 85048), (280, 74417), (392, 53155), (490, 42524), (980, 21262), (1960, 10631)]