2017885360

素因数分解:

$2^4\times 5^1\times {\mathrm{103}}^1\times {\mathrm{244889}}^1$

素因数の和:245005

約数の個数: 40

約数和(自身を含む): 4737152160

約数和(自身を除く): 2719266800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 103, 206, 412, 515, 824, 1030, 1648, 2060, 4120, 8240, 244889, 489778, 979556, 1224445, 1959112, 2448890, 3918224, 4897780, 9795560, 19591120, 25223567, 50447134, 100894268, 126117835, 201788536, 252235670, 403577072, 504471340, 1008942680, 2017885360]

約数ペア:

[(1, 2017885360), (2, 1008942680), (4, 504471340), (5, 403577072), (8, 252235670), (10, 201788536), (16, 126117835), (20, 100894268), (40, 50447134), (80, 25223567), (103, 19591120), (206, 9795560), (412, 4897780), (515, 3918224), (824, 2448890), (1030, 1959112), (1648, 1224445), (2060, 979556), (4120, 489778), (8240, 244889)]