198636520

素因数分解:

$2^3\times 5^1\times {\mathrm{613}}^1\times {\mathrm{8101}}^1$

素因数の和:8725

約数の個数: 32

約数和(自身を含む): 447716520

約数和(自身を除く): 249080000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 613, 1226, 2452, 3065, 4904, 6130, 8101, 12260, 16202, 24520, 32404, 40505, 64808, 81010, 162020, 324040, 4965913, 9931826, 19863652, 24829565, 39727304, 49659130, 99318260, 198636520]

約数ペア:

[(1, 198636520), (2, 99318260), (4, 49659130), (5, 39727304), (8, 24829565), (10, 19863652), (20, 9931826), (40, 4965913), (613, 324040), (1226, 162020), (2452, 81010), (3065, 64808), (4904, 40505), (6130, 32404), (8101, 24520), (12260, 16202)]