18707720

素因数分解:

$2^3\times 5^1\times {\mathrm{59}}^1\times {\mathrm{7927}}^1$

素因数の和:7997

約数の個数: 32

約数和(自身を含む): 42811200

約数和(自身を除く): 24103480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 59, 118, 236, 295, 472, 590, 1180, 2360, 7927, 15854, 31708, 39635, 63416, 79270, 158540, 317080, 467693, 935386, 1870772, 2338465, 3741544, 4676930, 9353860, 18707720]

約数ペア:

[(1, 18707720), (2, 9353860), (4, 4676930), (5, 3741544), (8, 2338465), (10, 1870772), (20, 935386), (40, 467693), (59, 317080), (118, 158540), (236, 79270), (295, 63416), (472, 39635), (590, 31708), (1180, 15854), (2360, 7927)]