16480840

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{13291}}^1$

素因数の和:13333

約数の個数: 32

約数和(自身を含む): 38280960

約数和(自身を除く): 21800120

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 13291, 26582, 53164, 66455, 106328, 132910, 265820, 412021, 531640, 824042, 1648084, 2060105, 3296168, 4120210, 8240420, 16480840]

約数ペア:

[(1, 16480840), (2, 8240420), (4, 4120210), (5, 3296168), (8, 2060105), (10, 1648084), (20, 824042), (31, 531640), (40, 412021), (62, 265820), (124, 132910), (155, 106328), (248, 66455), (310, 53164), (620, 26582), (1240, 13291)]