28008008

素因数分解:

$2^3\times 7^3\times {\mathrm{59}}^1\times {\mathrm{173}}^1$

素因数の和:259

約数の個数: 64

約数和(自身を含む): 62640000

約数和(自身を除く): 34631992

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 59, 98, 118, 173, 196, 236, 343, 346, 392, 413, 472, 686, 692, 826, 1211, 1372, 1384, 1652, 2422, 2744, 2891, 3304, 4844, 5782, 8477, 9688, 10207, 11564, 16954, 20237, 20414, 23128, 33908, 40474, 40828, 59339, 67816, 71449, 80948, 81656, 118678, 142898, 161896, 237356, 285796, 474712, 500143, 571592, 1000286, 2000572, 3501001, 4001144, 7002002, 14004004, 28008008]

約数ペア:

[(1, 28008008), (2, 14004004), (4, 7002002), (7, 4001144), (8, 3501001), (14, 2000572), (28, 1000286), (49, 571592), (56, 500143), (59, 474712), (98, 285796), (118, 237356), (173, 161896), (196, 142898), (236, 118678), (343, 81656), (346, 80948), (392, 71449), (413, 67816), (472, 59339), (686, 40828), (692, 40474), (826, 33908), (1211, 23128), (1372, 20414), (1384, 20237), (1652, 16954), (2422, 11564), (2744, 10207), (2891, 9688), (3304, 8477), (4844, 5782)]