138380

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1$

素因数の和:74

約数の個数: 48

約数和(自身を含む): 344736

約数和(自身を除く): 206356

約数列:

[1, 2, 4, 5, 10, 11, 17, 20, 22, 34, 37, 44, 55, 68, 74, 85, 110, 148, 170, 185, 187, 220, 340, 370, 374, 407, 629, 740, 748, 814, 935, 1258, 1628, 1870, 2035, 2516, 3145, 3740, 4070, 6290, 6919, 8140, 12580, 13838, 27676, 34595, 69190, 138380]

約数ペア:

[(1, 138380), (2, 69190), (4, 34595), (5, 27676), (10, 13838), (11, 12580), (17, 8140), (20, 6919), (22, 6290), (34, 4070), (37, 3740), (44, 3145), (55, 2516), (68, 2035), (74, 1870), (85, 1628), (110, 1258), (148, 935), (170, 814), (185, 748), (187, 740), (220, 629), (340, 407), (370, 374)]