666204

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{103}}^1$

素因数の和:135

約数の個数: 72

約数和(自身を含む): 1991808

約数和(自身を除く): 1325604

約数列:

[1, 2, 3, 4, 6, 7, 11, 12, 14, 21, 22, 28, 33, 42, 44, 49, 66, 77, 84, 98, 103, 132, 147, 154, 196, 206, 231, 294, 308, 309, 412, 462, 539, 588, 618, 721, 924, 1078, 1133, 1236, 1442, 1617, 2156, 2163, 2266, 2884, 3234, 3399, 4326, 4532, 5047, 6468, 6798, 7931, 8652, 10094, 13596, 15141, 15862, 20188, 23793, 30282, 31724, 47586, 55517, 60564, 95172, 111034, 166551, 222068, 333102, 666204]

約数ペア:

[(1, 666204), (2, 333102), (3, 222068), (4, 166551), (6, 111034), (7, 95172), (11, 60564), (12, 55517), (14, 47586), (21, 31724), (22, 30282), (28, 23793), (33, 20188), (42, 15862), (44, 15141), (49, 13596), (66, 10094), (77, 8652), (84, 7931), (98, 6798), (103, 6468), (132, 5047), (147, 4532), (154, 4326), (196, 3399), (206, 3234), (231, 2884), (294, 2266), (308, 2163), (309, 2156), (412, 1617), (462, 1442), (539, 1236), (588, 1133), (618, 1078), (721, 924)]