28078680

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{33427}}^1$

素因数の和:33448

約数の個数: 64

約数和(自身を含む): 96272640

約数和(自身を除く): 68193960

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, 33427, 66854, 100281, 133708, 167135, 200562, 233989, 267416, 334270, 401124, 467978, 501405, 668540, 701967, 802248, 935956, 1002810, 1169945, 1337080, 1403934, 1871912, 2005620, 2339890, 2807868, 3509835, 4011240, 4679780, 5615736, 7019670, 9359560, 14039340, 28078680]

約数ペア:

[(1, 28078680), (2, 14039340), (3, 9359560), (4, 7019670), (5, 5615736), (6, 4679780), (7, 4011240), (8, 3509835), (10, 2807868), (12, 2339890), (14, 2005620), (15, 1871912), (20, 1403934), (21, 1337080), (24, 1169945), (28, 1002810), (30, 935956), (35, 802248), (40, 701967), (42, 668540), (56, 501405), (60, 467978), (70, 401124), (84, 334270), (105, 267416), (120, 233989), (140, 200562), (168, 167135), (210, 133708), (280, 100281), (420, 66854), (840, 33427)]