1218420

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{967}}^1$

素因数の和:989

約数の個数: 72

約数和(自身を含む): 4228224

約数和(自身を除く): 3009804

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 967, 1260, 1934, 2901, 3868, 4835, 5802, 6769, 8703, 9670, 11604, 13538, 14505, 17406, 19340, 20307, 27076, 29010, 33845, 34812, 40614, 43515, 58020, 60921, 67690, 81228, 87030, 101535, 121842, 135380, 174060, 203070, 243684, 304605, 406140, 609210, 1218420]

約数ペア:

[(1, 1218420), (2, 609210), (3, 406140), (4, 304605), (5, 243684), (6, 203070), (7, 174060), (9, 135380), (10, 121842), (12, 101535), (14, 87030), (15, 81228), (18, 67690), (20, 60921), (21, 58020), (28, 43515), (30, 40614), (35, 34812), (36, 33845), (42, 29010), (45, 27076), (60, 20307), (63, 19340), (70, 17406), (84, 14505), (90, 13538), (105, 11604), (126, 9670), (140, 8703), (180, 6769), (210, 5802), (252, 4835), (315, 3868), (420, 2901), (630, 1934), (967, 1260)]