18981736990

素因数分解:

$2^1\times 5^1\times {\mathrm{101}}^1\times {\mathrm{541}}^1\times {\mathrm{34739}}^1$

素因数の和:35388

約数の個数: 32

約数和(自身を含む): 34570190880

約数和(自身を除く): 15588453890

約数列:

[1, 2, 5, 10, 101, 202, 505, 541, 1010, 1082, 2705, 5410, 34739, 54641, 69478, 109282, 173695, 273205, 347390, 546410, 3508639, 7017278, 17543195, 18793799, 35086390, 37587598, 93968995, 187937990, 1898173699, 3796347398, 9490868495, 18981736990]

約数ペア:

[(1, 18981736990), (2, 9490868495), (5, 3796347398), (10, 1898173699), (101, 187937990), (202, 93968995), (505, 37587598), (541, 35086390), (1010, 18793799), (1082, 17543195), (2705, 7017278), (5410, 3508639), (34739, 546410), (54641, 347390), (69478, 273205), (109282, 173695)]