185240420

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1\times {\mathrm{1787}}^1$

素因数の和:1940

約数の個数: 48

約数和(自身を含む): 400111488

約数和(自身を除く): 214871068

約数列:

[1, 2, 4, 5, 10, 20, 71, 73, 142, 146, 284, 292, 355, 365, 710, 730, 1420, 1460, 1787, 3574, 5183, 7148, 8935, 10366, 17870, 20732, 25915, 35740, 51830, 103660, 126877, 130451, 253754, 260902, 507508, 521804, 634385, 652255, 1268770, 1304510, 2537540, 2609020, 9262021, 18524042, 37048084, 46310105, 92620210, 185240420]

約数ペア:

[(1, 185240420), (2, 92620210), (4, 46310105), (5, 37048084), (10, 18524042), (20, 9262021), (71, 2609020), (73, 2537540), (142, 1304510), (146, 1268770), (284, 652255), (292, 634385), (355, 521804), (365, 507508), (710, 260902), (730, 253754), (1420, 130451), (1460, 126877), (1787, 103660), (3574, 51830), (5183, 35740), (7148, 25915), (8935, 20732), (10366, 17870)]