20173685984

素因数分解:

$2^5\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{472939}}^1$

素因数の和:473023

約数の個数: 48

約数和(自身を含む): 41951669760

約数和(自身を除く): 21777983776

約数列:

[1, 2, 4, 8, 16, 31, 32, 43, 62, 86, 124, 172, 248, 344, 496, 688, 992, 1333, 1376, 2666, 5332, 10664, 21328, 42656, 472939, 945878, 1891756, 3783512, 7567024, 14661109, 15134048, 20336377, 29322218, 40672754, 58644436, 81345508, 117288872, 162691016, 234577744, 325382032, 469155488, 630427687, 650764064, 1260855374, 2521710748, 5043421496, 10086842992, 20173685984]

約数ペア:

[(1, 20173685984), (2, 10086842992), (4, 5043421496), (8, 2521710748), (16, 1260855374), (31, 650764064), (32, 630427687), (43, 469155488), (62, 325382032), (86, 234577744), (124, 162691016), (172, 117288872), (248, 81345508), (344, 58644436), (496, 40672754), (688, 29322218), (992, 20336377), (1333, 15134048), (1376, 14661109), (2666, 7567024), (5332, 3783512), (10664, 1891756), (21328, 945878), (42656, 472939)]