87520280

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{30817}}^1$

素因数の和:30899

約数の個数: 32

約数和(自身を含む): 199700640

約数和(自身を除く): 112180360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 30817, 61634, 123268, 154085, 246536, 308170, 616340, 1232680, 2188007, 4376014, 8752028, 10940035, 17504056, 21880070, 43760140, 87520280]

約数ペア:

[(1, 87520280), (2, 43760140), (4, 21880070), (5, 17504056), (8, 10940035), (10, 8752028), (20, 4376014), (40, 2188007), (71, 1232680), (142, 616340), (284, 308170), (355, 246536), (568, 154085), (710, 123268), (1420, 61634), (2840, 30817)]