131611390

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{349}}^1\times {\mathrm{877}}^1$

素因数の和:1276

約数の個数: 32

約数和(自身を含む): 243381600

約数和(自身を除く): 111770210

約数列:

[1, 2, 5, 10, 43, 86, 215, 349, 430, 698, 877, 1745, 1754, 3490, 4385, 8770, 15007, 30014, 37711, 75035, 75422, 150070, 188555, 306073, 377110, 612146, 1530365, 3060730, 13161139, 26322278, 65805695, 131611390]

約数ペア:

[(1, 131611390), (2, 65805695), (5, 26322278), (10, 13161139), (43, 3060730), (86, 1530365), (215, 612146), (349, 377110), (430, 306073), (698, 188555), (877, 150070), (1745, 75422), (1754, 75035), (3490, 37711), (4385, 30014), (8770, 15007)]