81123040

素因数分解:

$2^5\times 5^1\times {\mathrm{97}}^1\times {\mathrm{5227}}^1$

素因数の和:5339

約数の個数: 48

約数和(自身を含む): 193666032

約数和(自身を除く): 112542992

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 97, 160, 194, 388, 485, 776, 970, 1552, 1940, 3104, 3880, 5227, 7760, 10454, 15520, 20908, 26135, 41816, 52270, 83632, 104540, 167264, 209080, 418160, 507019, 836320, 1014038, 2028076, 2535095, 4056152, 5070190, 8112304, 10140380, 16224608, 20280760, 40561520, 81123040]

約数ペア:

[(1, 81123040), (2, 40561520), (4, 20280760), (5, 16224608), (8, 10140380), (10, 8112304), (16, 5070190), (20, 4056152), (32, 2535095), (40, 2028076), (80, 1014038), (97, 836320), (160, 507019), (194, 418160), (388, 209080), (485, 167264), (776, 104540), (970, 83632), (1552, 52270), (1940, 41816), (3104, 26135), (3880, 20908), (5227, 15520), (7760, 10454)]