2861800

素因数分解:

$2^3\times 5^2\times {\mathrm{41}}^1\times {\mathrm{349}}^1$

素因数の和:406

約数の個数: 48

約数和(自身を含む): 6835500

約数和(自身を除く): 3973700

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 41, 50, 82, 100, 164, 200, 205, 328, 349, 410, 698, 820, 1025, 1396, 1640, 1745, 2050, 2792, 3490, 4100, 6980, 8200, 8725, 13960, 14309, 17450, 28618, 34900, 57236, 69800, 71545, 114472, 143090, 286180, 357725, 572360, 715450, 1430900, 2861800]

約数ペア:

[(1, 2861800), (2, 1430900), (4, 715450), (5, 572360), (8, 357725), (10, 286180), (20, 143090), (25, 114472), (40, 71545), (41, 69800), (50, 57236), (82, 34900), (100, 28618), (164, 17450), (200, 14309), (205, 13960), (328, 8725), (349, 8200), (410, 6980), (698, 4100), (820, 3490), (1025, 2792), (1396, 2050), (1640, 1745)]