84612890

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{223}}^1\times {\mathrm{1997}}^1$

素因数の和:2246

約数の個数: 32

約数和(自身を含む): 161118720

約数和(自身を除く): 76505830

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 223, 446, 1115, 1997, 2230, 3994, 4237, 8474, 9985, 19970, 21185, 37943, 42370, 75886, 189715, 379430, 445331, 890662, 2226655, 4453310, 8461289, 16922578, 42306445, 84612890]

約数ペア:

[(1, 84612890), (2, 42306445), (5, 16922578), (10, 8461289), (19, 4453310), (38, 2226655), (95, 890662), (190, 445331), (223, 379430), (446, 189715), (1115, 75886), (1997, 42370), (2230, 37943), (3994, 21185), (4237, 19970), (8474, 9985)]