81764990

素因数分解:

$2^1\times 5^1\times {\mathrm{151}}^1\times {\mathrm{173}}^1\times {\mathrm{313}}^1$

素因数の和:644

約数の個数: 32

約数和(自身を含む): 149484096

約数和(自身を除く): 67719106

約数列:

[1, 2, 5, 10, 151, 173, 302, 313, 346, 626, 755, 865, 1510, 1565, 1730, 3130, 26123, 47263, 52246, 54149, 94526, 108298, 130615, 236315, 261230, 270745, 472630, 541490, 8176499, 16352998, 40882495, 81764990]

約数ペア:

[(1, 81764990), (2, 40882495), (5, 16352998), (10, 8176499), (151, 541490), (173, 472630), (302, 270745), (313, 261230), (346, 236315), (626, 130615), (755, 108298), (865, 94526), (1510, 54149), (1565, 52246), (1730, 47263), (3130, 26123)]