1338920

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{179}}^1$

素因数の和:218

約数の個数: 64

約数和(自身を含む): 3499200

約数和(自身を除く): 2160280

約数列:

[1, 2, 4, 5, 8, 10, 11, 17, 20, 22, 34, 40, 44, 55, 68, 85, 88, 110, 136, 170, 179, 187, 220, 340, 358, 374, 440, 680, 716, 748, 895, 935, 1432, 1496, 1790, 1870, 1969, 3043, 3580, 3740, 3938, 6086, 7160, 7480, 7876, 9845, 12172, 15215, 15752, 19690, 24344, 30430, 33473, 39380, 60860, 66946, 78760, 121720, 133892, 167365, 267784, 334730, 669460, 1338920]

約数ペア:

[(1, 1338920), (2, 669460), (4, 334730), (5, 267784), (8, 167365), (10, 133892), (11, 121720), (17, 78760), (20, 66946), (22, 60860), (34, 39380), (40, 33473), (44, 30430), (55, 24344), (68, 19690), (85, 15752), (88, 15215), (110, 12172), (136, 9845), (170, 7876), (179, 7480), (187, 7160), (220, 6086), (340, 3938), (358, 3740), (374, 3580), (440, 3043), (680, 1969), (716, 1870), (748, 1790), (895, 1496), (935, 1432)]