72886940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{520621}}^1$

素因数の和:520637

約数の個数: 24

約数和(自身を含む): 174928992

約数和(自身を除く): 102042052

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 520621, 1041242, 2082484, 2603105, 3644347, 5206210, 7288694, 10412420, 14577388, 18221735, 36443470, 72886940]

約数ペア:

[(1, 72886940), (2, 36443470), (4, 18221735), (5, 14577388), (7, 10412420), (10, 7288694), (14, 5206210), (20, 3644347), (28, 2603105), (35, 2082484), (70, 1041242), (140, 520621)]