16981240

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{14639}}^1$

素因数の和:14679

約数の個数: 32

約数和(自身を含む): 39528000

約数和(自身を除く): 22546760

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 145, 232, 290, 580, 1160, 14639, 29278, 58556, 73195, 117112, 146390, 292780, 424531, 585560, 849062, 1698124, 2122655, 3396248, 4245310, 8490620, 16981240]

約数ペア:

[(1, 16981240), (2, 8490620), (4, 4245310), (5, 3396248), (8, 2122655), (10, 1698124), (20, 849062), (29, 585560), (40, 424531), (58, 292780), (116, 146390), (145, 117112), (232, 73195), (290, 58556), (580, 29278), (1160, 14639)]