20839560

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{24809}}^1$

素因数の和:24830

約数の個数: 64

約数和(自身を含む): 71452800

約数和(自身を除く): 50613240

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, 24809, 49618, 74427, 99236, 124045, 148854, 173663, 198472, 248090, 297708, 347326, 372135, 496180, 520989, 595416, 694652, 744270, 868315, 992360, 1041978, 1389304, 1488540, 1736630, 2083956, 2604945, 2977080, 3473260, 4167912, 5209890, 6946520, 10419780, 20839560]

約数ペア:

[(1, 20839560), (2, 10419780), (3, 6946520), (4, 5209890), (5, 4167912), (6, 3473260), (7, 2977080), (8, 2604945), (10, 2083956), (12, 1736630), (14, 1488540), (15, 1389304), (20, 1041978), (21, 992360), (24, 868315), (28, 744270), (30, 694652), (35, 595416), (40, 520989), (42, 496180), (56, 372135), (60, 347326), (70, 297708), (84, 248090), (105, 198472), (120, 173663), (140, 148854), (168, 124045), (210, 99236), (280, 74427), (420, 49618), (840, 24809)]