388987620

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{926161}}^1$

素因数の和:926180

約数の個数: 48

約数和(自身を含む): 1244761728

約数和(自身を除く): 855774108

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 926161, 1852322, 2778483, 3704644, 4630805, 5556966, 6483127, 9261610, 11113932, 12966254, 13892415, 18523220, 19449381, 25932508, 27784830, 32415635, 38898762, 55569660, 64831270, 77797524, 97246905, 129662540, 194493810, 388987620]

約数ペア:

[(1, 388987620), (2, 194493810), (3, 129662540), (4, 97246905), (5, 77797524), (6, 64831270), (7, 55569660), (10, 38898762), (12, 32415635), (14, 27784830), (15, 25932508), (20, 19449381), (21, 18523220), (28, 13892415), (30, 12966254), (35, 11113932), (42, 9261610), (60, 6483127), (70, 5556966), (84, 4630805), (105, 3704644), (140, 2778483), (210, 1852322), (420, 926161)]