16391620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{191}}^1\times {\mathrm{613}}^1$

素因数の和:820

約数の個数: 48

約数和(自身を含む): 39610368

約数和(自身を除く): 23218748

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 191, 382, 613, 764, 955, 1226, 1337, 1910, 2452, 2674, 3065, 3820, 4291, 5348, 6130, 6685, 8582, 12260, 13370, 17164, 21455, 26740, 42910, 85820, 117083, 234166, 468332, 585415, 819581, 1170830, 1639162, 2341660, 3278324, 4097905, 8195810, 16391620]

約数ペア:

[(1, 16391620), (2, 8195810), (4, 4097905), (5, 3278324), (7, 2341660), (10, 1639162), (14, 1170830), (20, 819581), (28, 585415), (35, 468332), (70, 234166), (140, 117083), (191, 85820), (382, 42910), (613, 26740), (764, 21455), (955, 17164), (1226, 13370), (1337, 12260), (1910, 8582), (2452, 6685), (2674, 6130), (3065, 5348), (3820, 4291)]