18916510

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{439}}^1$

素因数の和:616

約数の個数: 32

約数和(自身を含む): 35481600

約数和(自身を除く): 16565090

約数列:

[1, 2, 5, 10, 31, 62, 139, 155, 278, 310, 439, 695, 878, 1390, 2195, 4309, 4390, 8618, 13609, 21545, 27218, 43090, 61021, 68045, 122042, 136090, 305105, 610210, 1891651, 3783302, 9458255, 18916510]

約数ペア:

[(1, 18916510), (2, 9458255), (5, 3783302), (10, 1891651), (31, 610210), (62, 305105), (139, 136090), (155, 122042), (278, 68045), (310, 61021), (439, 43090), (695, 27218), (878, 21545), (1390, 13609), (2195, 8618), (4309, 4390)]