20970860

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{1667}}^1$

素因数の和:1730

約数の個数: 48

約数和(自身を含む): 47918304

約数和(自身を除く): 26947444

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 37, 68, 74, 85, 148, 170, 185, 340, 370, 629, 740, 1258, 1667, 2516, 3145, 3334, 6290, 6668, 8335, 12580, 16670, 28339, 33340, 56678, 61679, 113356, 123358, 141695, 246716, 283390, 308395, 566780, 616790, 1048543, 1233580, 2097086, 4194172, 5242715, 10485430, 20970860]

約数ペア:

[(1, 20970860), (2, 10485430), (4, 5242715), (5, 4194172), (10, 2097086), (17, 1233580), (20, 1048543), (34, 616790), (37, 566780), (68, 308395), (74, 283390), (85, 246716), (148, 141695), (170, 123358), (185, 113356), (340, 61679), (370, 56678), (629, 33340), (740, 28339), (1258, 16670), (1667, 12580), (2516, 8335), (3145, 6668), (3334, 6290)]