17999320

素因数分解:

$2^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{4639}}^1$

素因数の和:4747

約数の個数: 32

約数和(自身を含む): 40924800

約数和(自身を除く): 22925480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 97, 194, 388, 485, 776, 970, 1940, 3880, 4639, 9278, 18556, 23195, 37112, 46390, 92780, 185560, 449983, 899966, 1799932, 2249915, 3599864, 4499830, 8999660, 17999320]

約数ペア:

[(1, 17999320), (2, 8999660), (4, 4499830), (5, 3599864), (8, 2249915), (10, 1799932), (20, 899966), (40, 449983), (97, 185560), (194, 92780), (388, 46390), (485, 37112), (776, 23195), (970, 18556), (1940, 9278), (3880, 4639)]