65368720

素因数分解:

$2^4\times 5^1\times {\mathrm{89}}^1\times {\mathrm{9181}}^1$

素因数の和:9283

約数の個数: 40

約数和(自身を含む): 153706680

約数和(自身を除く): 88337960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 89, 178, 356, 445, 712, 890, 1424, 1780, 3560, 7120, 9181, 18362, 36724, 45905, 73448, 91810, 146896, 183620, 367240, 734480, 817109, 1634218, 3268436, 4085545, 6536872, 8171090, 13073744, 16342180, 32684360, 65368720]

約数ペア:

[(1, 65368720), (2, 32684360), (4, 16342180), (5, 13073744), (8, 8171090), (10, 6536872), (16, 4085545), (20, 3268436), (40, 1634218), (80, 817109), (89, 734480), (178, 367240), (356, 183620), (445, 146896), (712, 91810), (890, 73448), (1424, 45905), (1780, 36724), (3560, 18362), (7120, 9181)]