18560780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{233}}^1\times {\mathrm{569}}^1$

素因数の和:818

約数の個数: 48

約数和(自身を含む): 44815680

約数和(自身を除く): 26254900

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 233, 466, 569, 932, 1138, 1165, 1631, 2276, 2330, 2845, 3262, 3983, 4660, 5690, 6524, 7966, 8155, 11380, 15932, 16310, 19915, 32620, 39830, 79660, 132577, 265154, 530308, 662885, 928039, 1325770, 1856078, 2651540, 3712156, 4640195, 9280390, 18560780]

約数ペア:

[(1, 18560780), (2, 9280390), (4, 4640195), (5, 3712156), (7, 2651540), (10, 1856078), (14, 1325770), (20, 928039), (28, 662885), (35, 530308), (70, 265154), (140, 132577), (233, 79660), (466, 39830), (569, 32620), (932, 19915), (1138, 16310), (1165, 15932), (1631, 11380), (2276, 8155), (2330, 7966), (2845, 6524), (3262, 5690), (3983, 4660)]