20371770

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{197}}^1\times {\mathrm{383}}^1$

素因数の和:596

約数の個数: 64

約数和(自身を含む): 54743040

約数和(自身を除く): 34371270

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 90, 135, 197, 270, 383, 394, 591, 766, 985, 1149, 1182, 1773, 1915, 1970, 2298, 2955, 3447, 3546, 3830, 5319, 5745, 5910, 6894, 8865, 10341, 10638, 11490, 17235, 17730, 20682, 26595, 34470, 51705, 53190, 75451, 103410, 150902, 226353, 377255, 452706, 679059, 754510, 1131765, 1358118, 2037177, 2263530, 3395295, 4074354, 6790590, 10185885, 20371770]

約数ペア:

[(1, 20371770), (2, 10185885), (3, 6790590), (5, 4074354), (6, 3395295), (9, 2263530), (10, 2037177), (15, 1358118), (18, 1131765), (27, 754510), (30, 679059), (45, 452706), (54, 377255), (90, 226353), (135, 150902), (197, 103410), (270, 75451), (383, 53190), (394, 51705), (591, 34470), (766, 26595), (985, 20682), (1149, 17730), (1182, 17235), (1773, 11490), (1915, 10638), (1970, 10341), (2298, 8865), (2955, 6894), (3447, 5910), (3546, 5745), (3830, 5319)]