20238080

素因数分解:

$2^8\times 5^1\times {\mathrm{97}}^1\times {\mathrm{163}}^1$

素因数の和:281

約数の個数: 72

約数和(自身を含む): 49276752

約数和(自身を除く): 29038672

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 97, 128, 160, 163, 194, 256, 320, 326, 388, 485, 640, 652, 776, 815, 970, 1280, 1304, 1552, 1630, 1940, 2608, 3104, 3260, 3880, 5216, 6208, 6520, 7760, 10432, 12416, 13040, 15520, 15811, 20864, 24832, 26080, 31040, 31622, 41728, 52160, 62080, 63244, 79055, 104320, 124160, 126488, 158110, 208640, 252976, 316220, 505952, 632440, 1011904, 1264880, 2023808, 2529760, 4047616, 5059520, 10119040, 20238080]

約数ペア:

[(1, 20238080), (2, 10119040), (4, 5059520), (5, 4047616), (8, 2529760), (10, 2023808), (16, 1264880), (20, 1011904), (32, 632440), (40, 505952), (64, 316220), (80, 252976), (97, 208640), (128, 158110), (160, 126488), (163, 124160), (194, 104320), (256, 79055), (320, 63244), (326, 62080), (388, 52160), (485, 41728), (640, 31622), (652, 31040), (776, 26080), (815, 24832), (970, 20864), (1280, 15811), (1304, 15520), (1552, 13040), (1630, 12416), (1940, 10432), (2608, 7760), (3104, 6520), (3260, 6208), (3880, 5216)]