38906140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{21377}}^1$

素因数の和:21406

約数の個数: 48

約数和(自身を含む): 100562112

約数和(自身を除く): 61655972

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1820, 21377, 42754, 85508, 106885, 149639, 213770, 277901, 299278, 427540, 555802, 598556, 748195, 1111604, 1389505, 1496390, 1945307, 2779010, 2992780, 3890614, 5558020, 7781228, 9726535, 19453070, 38906140]

約数ペア:

[(1, 38906140), (2, 19453070), (4, 9726535), (5, 7781228), (7, 5558020), (10, 3890614), (13, 2992780), (14, 2779010), (20, 1945307), (26, 1496390), (28, 1389505), (35, 1111604), (52, 748195), (65, 598556), (70, 555802), (91, 427540), (130, 299278), (140, 277901), (182, 213770), (260, 149639), (364, 106885), (455, 85508), (910, 42754), (1820, 21377)]