19686520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{70309}}^1$

素因数の和:70327

約数の個数: 32

約数和(自身を含む): 50623200

約数和(自身を除く): 30936680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 70309, 140618, 281236, 351545, 492163, 562472, 703090, 984326, 1406180, 1968652, 2460815, 2812360, 3937304, 4921630, 9843260, 19686520]

約数ペア:

[(1, 19686520), (2, 9843260), (4, 4921630), (5, 3937304), (7, 2812360), (8, 2460815), (10, 1968652), (14, 1406180), (20, 984326), (28, 703090), (35, 562472), (40, 492163), (56, 351545), (70, 281236), (140, 140618), (280, 70309)]