1398760

素因数分解:

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

素因数の和:67

約数の個数: 72

約数和(自身を含む): 3674790

約数和(自身を除く): 2276030

約数列:

[1, 2, 4, 5, 8, 10, 11, 17, 20, 22, 34, 40, 44, 55, 68, 85, 88, 110, 121, 136, 170, 187, 220, 242, 289, 340, 374, 440, 484, 578, 605, 680, 748, 935, 968, 1156, 1210, 1445, 1496, 1870, 2057, 2312, 2420, 2890, 3179, 3740, 4114, 4840, 5780, 6358, 7480, 8228, 10285, 11560, 12716, 15895, 16456, 20570, 25432, 31790, 34969, 41140, 63580, 69938, 82280, 127160, 139876, 174845, 279752, 349690, 699380, 1398760]

約数ペア:

[(1, 1398760), (2, 699380), (4, 349690), (5, 279752), (8, 174845), (10, 139876), (11, 127160), (17, 82280), (20, 69938), (22, 63580), (34, 41140), (40, 34969), (44, 31790), (55, 25432), (68, 20570), (85, 16456), (88, 15895), (110, 12716), (121, 11560), (136, 10285), (170, 8228), (187, 7480), (220, 6358), (242, 5780), (289, 4840), (340, 4114), (374, 3740), (440, 3179), (484, 2890), (578, 2420), (605, 2312), (680, 2057), (748, 1870), (935, 1496), (968, 1445), (1156, 1210)]