1237990

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{107}}^1$

素因数の和:216

約数の個数: 32

約数和(自身を含む): 2449440

約数和(自身を除く): 1211450

約数列:

[1, 2, 5, 10, 13, 26, 65, 89, 107, 130, 178, 214, 445, 535, 890, 1070, 1157, 1391, 2314, 2782, 5785, 6955, 9523, 11570, 13910, 19046, 47615, 95230, 123799, 247598, 618995, 1237990]

約数ペア:

[(1, 1237990), (2, 618995), (5, 247598), (10, 123799), (13, 95230), (26, 47615), (65, 19046), (89, 13910), (107, 11570), (130, 9523), (178, 6955), (214, 5785), (445, 2782), (535, 2314), (890, 1391), (1070, 1157)]