39763420

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^2\times {\mathrm{251}}^1$

素因数の和:438

約数の個数: 36

約数和(自身を含む): 84788424

約数和(自身を除く): 45025004

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 251, 356, 445, 502, 890, 1004, 1255, 1780, 2510, 5020, 7921, 15842, 22339, 31684, 39605, 44678, 79210, 89356, 111695, 158420, 223390, 446780, 1988171, 3976342, 7952684, 9940855, 19881710, 39763420]

約数ペア:

[(1, 39763420), (2, 19881710), (4, 9940855), (5, 7952684), (10, 3976342), (20, 1988171), (89, 446780), (178, 223390), (251, 158420), (356, 111695), (445, 89356), (502, 79210), (890, 44678), (1004, 39605), (1255, 31684), (1780, 22339), (2510, 15842), (5020, 7921)]