18104990

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{149}}^1\times {\mathrm{419}}^1$

素因数の和:604

約数の個数: 32

約数和(自身を含む): 34020000

約数和(自身を除く): 15915010

約数列:

[1, 2, 5, 10, 29, 58, 145, 149, 290, 298, 419, 745, 838, 1490, 2095, 4190, 4321, 8642, 12151, 21605, 24302, 43210, 60755, 62431, 121510, 124862, 312155, 624310, 1810499, 3620998, 9052495, 18104990]

約数ペア:

[(1, 18104990), (2, 9052495), (5, 3620998), (10, 1810499), (29, 624310), (58, 312155), (145, 124862), (149, 121510), (290, 62431), (298, 60755), (419, 43210), (745, 24302), (838, 21605), (1490, 12151), (2095, 8642), (4190, 4321)]