20078.0000000

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{8353}}^1$

素因数の和:8372

約数の個数: 48

約数和(自身を含む): 11227776

約数和(自身を除く): 7719516

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 8353, 16706, 25059, 33412, 41765, 50118, 58471, 83530, 100236, 116942, 125295, 167060, 175413, 233884, 250590, 292355, 350826, 501180, 584710, 701652, 877065, 1169420, 1754130, 3508260]

約数ペア:

[(1, 3508260), (2, 1754130), (3, 1169420), (4, 877065), (5, 701652), (6, 584710), (7, 501180), (10, 350826), (12, 292355), (14, 250590), (15, 233884), (20, 175413), (21, 167060), (28, 125295), (30, 116942), (35, 100236), (42, 83530), (60, 58471), (70, 50118), (84, 41765), (105, 33412), (140, 25059), (210, 16706), (420, 8353)]