40249972

素因数分解:

$2^2\times 7^2\times {\mathrm{205357}}^1$

素因数の和:205375

約数の個数: 18

約数和(自身を含む): 81937842

約数和(自身を除く): 41687870

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 205357, 410714, 821428, 1437499, 2874998, 5749996, 10062493, 20124986, 40249972]

約数ペア:

[(1, 40249972), (2, 20124986), (4, 10062493), (7, 5749996), (14, 2874998), (28, 1437499), (49, 821428), (98, 410714), (196, 205357)]