20005320

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{3877}}^1$

素因数の和:3934

約数の個数: 64

約数和(自身を含む): 61427520

約数和(自身を除く): 41422200

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 43, 60, 86, 120, 129, 172, 215, 258, 344, 430, 516, 645, 860, 1032, 1290, 1720, 2580, 3877, 5160, 7754, 11631, 15508, 19385, 23262, 31016, 38770, 46524, 58155, 77540, 93048, 116310, 155080, 166711, 232620, 333422, 465240, 500133, 666844, 833555, 1000266, 1333688, 1667110, 2000532, 2500665, 3334220, 4001064, 5001330, 6668440, 10002660, 20005320]

約数ペア:

[(1, 20005320), (2, 10002660), (3, 6668440), (4, 5001330), (5, 4001064), (6, 3334220), (8, 2500665), (10, 2000532), (12, 1667110), (15, 1333688), (20, 1000266), (24, 833555), (30, 666844), (40, 500133), (43, 465240), (60, 333422), (86, 232620), (120, 166711), (129, 155080), (172, 116310), (215, 93048), (258, 77540), (344, 58155), (430, 46524), (516, 38770), (645, 31016), (860, 23262), (1032, 19385), (1290, 15508), (1720, 11631), (2580, 7754), (3877, 5160)]