28021560

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{33359}}^1$

素因数の和:33380

約数の個数: 64

約数和(自身を含む): 96076800

約数和(自身を除く): 68055240

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 33359, 66718, 100077, 133436, 166795, 200154, 233513, 266872, 333590, 400308, 467026, 500385, 667180, 700539, 800616, 934052, 1000770, 1167565, 1334360, 1401078, 1868104, 2001540, 2335130, 2802156, 3502695, 4003080, 4670260, 5604312, 7005390, 9340520, 14010780, 28021560]

約数ペア:

[(1, 28021560), (2, 14010780), (3, 9340520), (4, 7005390), (5, 5604312), (6, 4670260), (7, 4003080), (8, 3502695), (10, 2802156), (12, 2335130), (14, 2001540), (15, 1868104), (20, 1401078), (21, 1334360), (24, 1167565), (28, 1000770), (30, 934052), (35, 800616), (40, 700539), (42, 667180), (56, 500385), (60, 467026), (70, 400308), (84, 333590), (105, 266872), (120, 233513), (140, 200154), (168, 166795), (210, 133436), (280, 100077), (420, 66718), (840, 33359)]