18779180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{4327}}^1$

素因数の和:4374

約数の個数: 48

約数和(自身を含む): 46534656

約数和(自身を除く): 27755476

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 124, 140, 155, 217, 310, 434, 620, 868, 1085, 2170, 4327, 4340, 8654, 17308, 21635, 30289, 43270, 60578, 86540, 121156, 134137, 151445, 268274, 302890, 536548, 605780, 670685, 938959, 1341370, 1877918, 2682740, 3755836, 4694795, 9389590, 18779180]

約数ペア:

[(1, 18779180), (2, 9389590), (4, 4694795), (5, 3755836), (7, 2682740), (10, 1877918), (14, 1341370), (20, 938959), (28, 670685), (31, 605780), (35, 536548), (62, 302890), (70, 268274), (124, 151445), (140, 134137), (155, 121156), (217, 86540), (310, 60578), (434, 43270), (620, 30289), (868, 21635), (1085, 17308), (2170, 8654), (4327, 4340)]