19891340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{3023}}^1$

素因数の和:3086

約数の個数: 48

約数和(自身を含む): 48771072

約数和(自身を除く): 28879732

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 47, 70, 94, 140, 188, 235, 329, 470, 658, 940, 1316, 1645, 3023, 3290, 6046, 6580, 12092, 15115, 21161, 30230, 42322, 60460, 84644, 105805, 142081, 211610, 284162, 423220, 568324, 710405, 994567, 1420810, 1989134, 2841620, 3978268, 4972835, 9945670, 19891340]

約数ペア:

[(1, 19891340), (2, 9945670), (4, 4972835), (5, 3978268), (7, 2841620), (10, 1989134), (14, 1420810), (20, 994567), (28, 710405), (35, 568324), (47, 423220), (70, 284162), (94, 211610), (140, 142081), (188, 105805), (235, 84644), (329, 60460), (470, 42322), (658, 30230), (940, 21161), (1316, 15115), (1645, 12092), (3023, 6580), (3290, 6046)]