19973240

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{71333}}^1$

素因数の和:71351

約数の個数: 32

約数和(自身を含む): 51360480

約数和(自身を除く): 31387240

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 71333, 142666, 285332, 356665, 499331, 570664, 713330, 998662, 1426660, 1997324, 2496655, 2853320, 3994648, 4993310, 9986620, 19973240]

約数ペア:

[(1, 19973240), (2, 9986620), (4, 4993310), (5, 3994648), (7, 2853320), (8, 2496655), (10, 1997324), (14, 1426660), (20, 998662), (28, 713330), (35, 570664), (40, 499331), (56, 356665), (70, 285332), (140, 142666), (280, 71333)]