2798180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1$

素因数の和:129

約数の個数: 96

約数和(自身を含む): 7741440

約数和(自身を除く): 4943260

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 23, 28, 35, 44, 46, 55, 70, 77, 79, 92, 110, 115, 140, 154, 158, 161, 220, 230, 253, 308, 316, 322, 385, 395, 460, 506, 553, 644, 770, 790, 805, 869, 1012, 1106, 1265, 1540, 1580, 1610, 1738, 1771, 1817, 2212, 2530, 2765, 3220, 3476, 3542, 3634, 4345, 5060, 5530, 6083, 7084, 7268, 8690, 8855, 9085, 11060, 12166, 12719, 17380, 17710, 18170, 19987, 24332, 25438, 30415, 35420, 36340, 39974, 50876, 60830, 63595, 79948, 99935, 121660, 127190, 139909, 199870, 254380, 279818, 399740, 559636, 699545, 1399090, 2798180]

約数ペア:

[(1, 2798180), (2, 1399090), (4, 699545), (5, 559636), (7, 399740), (10, 279818), (11, 254380), (14, 199870), (20, 139909), (22, 127190), (23, 121660), (28, 99935), (35, 79948), (44, 63595), (46, 60830), (55, 50876), (70, 39974), (77, 36340), (79, 35420), (92, 30415), (110, 25438), (115, 24332), (140, 19987), (154, 18170), (158, 17710), (161, 17380), (220, 12719), (230, 12166), (253, 11060), (308, 9085), (316, 8855), (322, 8690), (385, 7268), (395, 7084), (460, 6083), (506, 5530), (553, 5060), (644, 4345), (770, 3634), (790, 3542), (805, 3476), (869, 3220), (1012, 2765), (1106, 2530), (1265, 2212), (1540, 1817), (1580, 1771), (1610, 1738)]