8428140

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{6689}}^1$

素因数の和:6711

約数の個数: 72

約数和(自身を含む): 29221920

約数和(自身を除く): 20793780

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, 1260, 6689, 13378, 20067, 26756, 33445, 40134, 46823, 60201, 66890, 80268, 93646, 100335, 120402, 133780, 140469, 187292, 200670, 234115, 240804, 280938, 301005, 401340, 421407, 468230, 561876, 602010, 702345, 842814, 936460, 1204020, 1404690, 1685628, 2107035, 2809380, 4214070, 8428140]

約数ペア:

[(1, 8428140), (2, 4214070), (3, 2809380), (4, 2107035), (5, 1685628), (6, 1404690), (7, 1204020), (9, 936460), (10, 842814), (12, 702345), (14, 602010), (15, 561876), (18, 468230), (20, 421407), (21, 401340), (28, 301005), (30, 280938), (35, 240804), (36, 234115), (42, 200670), (45, 187292), (60, 140469), (63, 133780), (70, 120402), (84, 100335), (90, 93646), (105, 80268), (126, 66890), (140, 60201), (180, 46823), (210, 40134), (252, 33445), (315, 26756), (420, 20067), (630, 13378), (1260, 6689)]