821805830

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{227}}^1\times {\mathrm{5099}}^1$

素因数の和:5404

約数の個数: 32

約数和(自身を含む): 1506988800

約数和(自身を除く): 685182970

約数列:

[1, 2, 5, 10, 71, 142, 227, 355, 454, 710, 1135, 2270, 5099, 10198, 16117, 25495, 32234, 50990, 80585, 161170, 362029, 724058, 1157473, 1810145, 2314946, 3620290, 5787365, 11574730, 82180583, 164361166, 410902915, 821805830]

約数ペア:

[(1, 821805830), (2, 410902915), (5, 164361166), (10, 82180583), (71, 11574730), (142, 5787365), (227, 3620290), (355, 2314946), (454, 1810145), (710, 1157473), (1135, 724058), (2270, 362029), (5099, 161170), (10198, 80585), (16117, 50990), (25495, 32234)]