20583780

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{49009}}^1$

素因数の和:49028

約数の個数: 48

約数和(自身を含む): 65869440

約数和(自身を除く): 45285660

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 49009, 98018, 147027, 196036, 245045, 294054, 343063, 490090, 588108, 686126, 735135, 980180, 1029189, 1372252, 1470270, 1715315, 2058378, 2940540, 3430630, 4116756, 5145945, 6861260, 10291890, 20583780]

約数ペア:

[(1, 20583780), (2, 10291890), (3, 6861260), (4, 5145945), (5, 4116756), (6, 3430630), (7, 2940540), (10, 2058378), (12, 1715315), (14, 1470270), (15, 1372252), (20, 1029189), (21, 980180), (28, 735135), (30, 686126), (35, 588108), (42, 490090), (60, 343063), (70, 294054), (84, 245045), (105, 196036), (140, 147027), (210, 98018), (420, 49009)]