213940

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{563}}^1$

素因数の和:591

約数の個数: 24

約数和(自身を含む): 473760

約数和(自身を除く): 259820

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 563, 1126, 2252, 2815, 5630, 10697, 11260, 21394, 42788, 53485, 106970, 213940]

約数ペア:

[(1, 213940), (2, 106970), (4, 53485), (5, 42788), (10, 21394), (19, 11260), (20, 10697), (38, 5630), (76, 2815), (95, 2252), (190, 1126), (380, 563)]