18712680

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{22277}}^1$

素因数の和:22298

約数の個数: 64

約数和(自身を含む): 64160640

約数和(自身を除く): 45447960

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, 22277, 44554, 66831, 89108, 111385, 133662, 155939, 178216, 222770, 267324, 311878, 334155, 445540, 467817, 534648, 623756, 668310, 779695, 891080, 935634, 1247512, 1336620, 1559390, 1871268, 2339085, 2673240, 3118780, 3742536, 4678170, 6237560, 9356340, 18712680]

約数ペア:

[(1, 18712680), (2, 9356340), (3, 6237560), (4, 4678170), (5, 3742536), (6, 3118780), (7, 2673240), (8, 2339085), (10, 1871268), (12, 1559390), (14, 1336620), (15, 1247512), (20, 935634), (21, 891080), (24, 779695), (28, 668310), (30, 623756), (35, 534648), (40, 467817), (42, 445540), (56, 334155), (60, 311878), (70, 267324), (84, 222770), (105, 178216), (120, 155939), (140, 133662), (168, 111385), (210, 89108), (280, 66831), (420, 44554), (840, 22277)]