214921560

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{255859}}^1$

素因数の和:255880

約数の個数: 64

約数和(自身を含む): 736876800

約数和(自身を除く): 521955240

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, 255859, 511718, 767577, 1023436, 1279295, 1535154, 1791013, 2046872, 2558590, 3070308, 3582026, 3837885, 5117180, 5373039, 6140616, 7164052, 7675770, 8955065, 10234360, 10746078, 14328104, 15351540, 17910130, 21492156, 26865195, 30703080, 35820260, 42984312, 53730390, 71640520, 107460780, 214921560]

約数ペア:

[(1, 214921560), (2, 107460780), (3, 71640520), (4, 53730390), (5, 42984312), (6, 35820260), (7, 30703080), (8, 26865195), (10, 21492156), (12, 17910130), (14, 15351540), (15, 14328104), (20, 10746078), (21, 10234360), (24, 8955065), (28, 7675770), (30, 7164052), (35, 6140616), (40, 5373039), (42, 5117180), (56, 3837885), (60, 3582026), (70, 3070308), (84, 2558590), (105, 2046872), (120, 1791013), (140, 1535154), (168, 1279295), (210, 1023436), (280, 767577), (420, 511718), (840, 255859)]