20186980785

素因数分解:

$3^5\times 5^1\times {\mathrm{41}}^1\times {\mathrm{405239}}^1$

素因数の和:405300

約数の個数: 48

約数和(自身を含む): 37171854720

約数和(自身を除く): 16984873935

約数列:

[1, 3, 5, 9, 15, 27, 41, 45, 81, 123, 135, 205, 243, 369, 405, 615, 1107, 1215, 1845, 3321, 5535, 9963, 16605, 49815, 405239, 1215717, 2026195, 3647151, 6078585, 10941453, 16614799, 18235755, 32824359, 49844397, 54707265, 83073995, 98473077, 149533191, 164121795, 249221985, 448599573, 492365385, 747665955, 1345798719, 2242997865, 4037396157, 6728993595, 20186980785]

約数ペア:

[(1, 20186980785), (3, 6728993595), (5, 4037396157), (9, 2242997865), (15, 1345798719), (27, 747665955), (41, 492365385), (45, 448599573), (81, 249221985), (123, 164121795), (135, 149533191), (205, 98473077), (243, 83073995), (369, 54707265), (405, 49844397), (615, 32824359), (1107, 18235755), (1215, 16614799), (1845, 10941453), (3321, 6078585), (5535, 3647151), (9963, 2026195), (16605, 1215717), (49815, 405239)]