20943720

素因数分解:

$2^3\times 3^2\times 5^1\times 7^1\times {\mathrm{8311}}^1$

素因数の和:8335

約数の個数: 96

約数和(自身を含む): 77800320

約数和(自身を除く): 56856600

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 56, 60, 63, 70, 72, 84, 90, 105, 120, 126, 140, 168, 180, 210, 252, 280, 315, 360, 420, 504, 630, 840, 1260, 2520, 8311, 16622, 24933, 33244, 41555, 49866, 58177, 66488, 74799, 83110, 99732, 116354, 124665, 149598, 166220, 174531, 199464, 232708, 249330, 290885, 299196, 332440, 349062, 373995, 465416, 498660, 523593, 581770, 598392, 698124, 747990, 872655, 997320, 1047186, 1163540, 1396248, 1495980, 1745310, 2094372, 2327080, 2617965, 2991960, 3490620, 4188744, 5235930, 6981240, 10471860, 20943720]

約数ペア:

[(1, 20943720), (2, 10471860), (3, 6981240), (4, 5235930), (5, 4188744), (6, 3490620), (7, 2991960), (8, 2617965), (9, 2327080), (10, 2094372), (12, 1745310), (14, 1495980), (15, 1396248), (18, 1163540), (20, 1047186), (21, 997320), (24, 872655), (28, 747990), (30, 698124), (35, 598392), (36, 581770), (40, 523593), (42, 498660), (45, 465416), (56, 373995), (60, 349062), (63, 332440), (70, 299196), (72, 290885), (84, 249330), (90, 232708), (105, 199464), (120, 174531), (126, 166220), (140, 149598), (168, 124665), (180, 116354), (210, 99732), (252, 83110), (280, 74799), (315, 66488), (360, 58177), (420, 49866), (504, 41555), (630, 33244), (840, 24933), (1260, 16622), (2520, 8311)]