18918480

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{11261}}^1$

素因数の和:11284

約数の個数: 80

約数和(自身を含む): 67031424

約数和(自身を除く): 48112944

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 11261, 22522, 33783, 45044, 56305, 67566, 78827, 90088, 112610, 135132, 157654, 168915, 180176, 225220, 236481, 270264, 315308, 337830, 394135, 450440, 472962, 540528, 630616, 675660, 788270, 900880, 945924, 1182405, 1261232, 1351320, 1576540, 1891848, 2364810, 2702640, 3153080, 3783696, 4729620, 6306160, 9459240, 18918480]

約数ペア:

[(1, 18918480), (2, 9459240), (3, 6306160), (4, 4729620), (5, 3783696), (6, 3153080), (7, 2702640), (8, 2364810), (10, 1891848), (12, 1576540), (14, 1351320), (15, 1261232), (16, 1182405), (20, 945924), (21, 900880), (24, 788270), (28, 675660), (30, 630616), (35, 540528), (40, 472962), (42, 450440), (48, 394135), (56, 337830), (60, 315308), (70, 270264), (80, 236481), (84, 225220), (105, 180176), (112, 168915), (120, 157654), (140, 135132), (168, 112610), (210, 90088), (240, 78827), (280, 67566), (336, 56305), (420, 45044), (560, 33783), (840, 22522), (1680, 11261)]