2161740

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{5147}}^1$

素因数の和:5166

約数の個数: 48

約数和(自身を含む): 6918912

約数和(自身を除く): 4757172

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, 5147, 10294, 15441, 20588, 25735, 30882, 36029, 51470, 61764, 72058, 77205, 102940, 108087, 144116, 154410, 180145, 216174, 308820, 360290, 432348, 540435, 720580, 1080870, 2161740]

約数ペア:

[(1, 2161740), (2, 1080870), (3, 720580), (4, 540435), (5, 432348), (6, 360290), (7, 308820), (10, 216174), (12, 180145), (14, 154410), (15, 144116), (20, 108087), (21, 102940), (28, 77205), (30, 72058), (35, 61764), (42, 51470), (60, 36029), (70, 30882), (84, 25735), (105, 20588), (140, 15441), (210, 10294), (420, 5147)]