81293200

素因数分解:

$2^4\times 5^2\times {\mathrm{203233}}^1$

素因数の和:203251

約数の個数: 30

約数和(自身を含む): 195307874

約数和(自身を除く): 114014674

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 203233, 406466, 812932, 1016165, 1625864, 2032330, 3251728, 4064660, 5080825, 8129320, 10161650, 16258640, 20323300, 40646600, 81293200]

約数ペア:

[(1, 81293200), (2, 40646600), (4, 20323300), (5, 16258640), (8, 10161650), (10, 8129320), (16, 5080825), (20, 4064660), (25, 3251728), (40, 2032330), (50, 1625864), (80, 1016165), (100, 812932), (200, 406466), (400, 203233)]