281325240

素因数分解:

$2^3\times 3^2\times 5^1\times 7^1\times {\mathrm{111637}}^1$

素因数の和:111661

約数の個数: 96

約数和(自身を含む): 1044931680

約数和(自身を除く): 763606440

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 56, 60, 63, 70, 72, 84, 90, 105, 120, 126, 140, 168, 180, 210, 252, 280, 315, 360, 420, 504, 630, 840, 1260, 2520, 111637, 223274, 334911, 446548, 558185, 669822, 781459, 893096, 1004733, 1116370, 1339644, 1562918, 1674555, 2009466, 2232740, 2344377, 2679288, 3125836, 3349110, 3907295, 4018932, 4465480, 4688754, 5023665, 6251672, 6698220, 7033131, 7814590, 8037864, 9377508, 10047330, 11721885, 13396440, 14066262, 15629180, 18755016, 20094660, 23443770, 28132524, 31258360, 35165655, 40189320, 46887540, 56265048, 70331310, 93775080, 140662620, 281325240]

約数ペア:

[(1, 281325240), (2, 140662620), (3, 93775080), (4, 70331310), (5, 56265048), (6, 46887540), (7, 40189320), (8, 35165655), (9, 31258360), (10, 28132524), (12, 23443770), (14, 20094660), (15, 18755016), (18, 15629180), (20, 14066262), (21, 13396440), (24, 11721885), (28, 10047330), (30, 9377508), (35, 8037864), (36, 7814590), (40, 7033131), (42, 6698220), (45, 6251672), (56, 5023665), (60, 4688754), (63, 4465480), (70, 4018932), (72, 3907295), (84, 3349110), (90, 3125836), (105, 2679288), (120, 2344377), (126, 2232740), (140, 2009466), (168, 1674555), (180, 1562918), (210, 1339644), (252, 1116370), (280, 1004733), (315, 893096), (360, 781459), (420, 669822), (504, 558185), (630, 446548), (840, 334911), (1260, 223274), (2520, 111637)]