2018866480

素因数分解:

$2^4\times 5^1\times {\mathrm{25235831}}^1$

素因数の和:25235844

約数の個数: 20

約数和(自身を含む): 4693864752

約数和(自身を除く): 2674998272

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 25235831, 50471662, 100943324, 126179155, 201886648, 252358310, 403773296, 504716620, 1009433240, 2018866480]

約数ペア:

[(1, 2018866480), (2, 1009433240), (4, 504716620), (5, 403773296), (8, 252358310), (10, 201886648), (16, 126179155), (20, 100943324), (40, 50471662), (80, 25235831)]