1980342140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{487769}}^1$

素因数の和:487814

約数の個数: 48

約数和(自身を含む): 4916721600

約数和(自身を除く): 2936379460

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 29, 35, 58, 70, 116, 140, 145, 203, 290, 406, 580, 812, 1015, 2030, 4060, 487769, 975538, 1951076, 2438845, 3414383, 4877690, 6828766, 9755380, 13657532, 14145301, 17071915, 28290602, 34143830, 56581204, 68287660, 70726505, 99017107, 141453010, 198034214, 282906020, 396068428, 495085535, 990171070, 1980342140]

約数ペア:

[(1, 1980342140), (2, 990171070), (4, 495085535), (5, 396068428), (7, 282906020), (10, 198034214), (14, 141453010), (20, 99017107), (28, 70726505), (29, 68287660), (35, 56581204), (58, 34143830), (70, 28290602), (116, 17071915), (140, 14145301), (145, 13657532), (203, 9755380), (290, 6828766), (406, 4877690), (580, 3414383), (812, 2438845), (1015, 1951076), (2030, 975538), (4060, 487769)]