18650820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{7229}}^1$

素因数の和:7284

約数の個数: 48

約数和(自身を含む): 53444160

約数和(自身を除く): 34793340

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 43, 60, 86, 129, 172, 215, 258, 430, 516, 645, 860, 1290, 2580, 7229, 14458, 21687, 28916, 36145, 43374, 72290, 86748, 108435, 144580, 216870, 310847, 433740, 621694, 932541, 1243388, 1554235, 1865082, 3108470, 3730164, 4662705, 6216940, 9325410, 18650820]

約数ペア:

[(1, 18650820), (2, 9325410), (3, 6216940), (4, 4662705), (5, 3730164), (6, 3108470), (10, 1865082), (12, 1554235), (15, 1243388), (20, 932541), (30, 621694), (43, 433740), (60, 310847), (86, 216870), (129, 144580), (172, 108435), (215, 86748), (258, 72290), (430, 43374), (516, 36145), (645, 28916), (860, 21687), (1290, 14458), (2580, 7229)]