20801004

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{8539}}^1$

素因数の和:8582

約数の個数: 48

約数和(自身を含む): 57388800

約数和(自身を除く): 36587796

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 29, 42, 58, 84, 87, 116, 174, 203, 348, 406, 609, 812, 1218, 2436, 8539, 17078, 25617, 34156, 51234, 59773, 102468, 119546, 179319, 239092, 247631, 358638, 495262, 717276, 742893, 990524, 1485786, 1733417, 2971572, 3466834, 5200251, 6933668, 10400502, 20801004]

約数ペア:

[(1, 20801004), (2, 10400502), (3, 6933668), (4, 5200251), (6, 3466834), (7, 2971572), (12, 1733417), (14, 1485786), (21, 990524), (28, 742893), (29, 717276), (42, 495262), (58, 358638), (84, 247631), (87, 239092), (116, 179319), (174, 119546), (203, 102468), (348, 59773), (406, 51234), (609, 34156), (812, 25617), (1218, 17078), (2436, 8539)]