19645640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{70163}}^1$

素因数の和:70181

約数の個数: 32

約数和(自身を含む): 50518080

約数和(自身を除く): 30872440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 70163, 140326, 280652, 350815, 491141, 561304, 701630, 982282, 1403260, 1964564, 2455705, 2806520, 3929128, 4911410, 9822820, 19645640]

約数ペア:

[(1, 19645640), (2, 9822820), (4, 4911410), (5, 3929128), (7, 2806520), (8, 2455705), (10, 1964564), (14, 1403260), (20, 982282), (28, 701630), (35, 561304), (40, 491141), (56, 350815), (70, 280652), (140, 140326), (280, 70163)]