72867855

素因数分解:

$3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{97}}^1\times {\mathrm{821}}^1$

素因数の和:987

約数の個数: 32

約数和(自身を含む): 119867328

約数和(自身を除く): 46999473

約数列:

[1, 3, 5, 15, 61, 97, 183, 291, 305, 485, 821, 915, 1455, 2463, 4105, 5917, 12315, 17751, 29585, 50081, 79637, 88755, 150243, 238911, 250405, 398185, 751215, 1194555, 4857857, 14573571, 24289285, 72867855]

約数ペア:

[(1, 72867855), (3, 24289285), (5, 14573571), (15, 4857857), (61, 1194555), (97, 751215), (183, 398185), (291, 250405), (305, 238911), (485, 150243), (821, 88755), (915, 79637), (1455, 50081), (2463, 29585), (4105, 17751), (5917, 12315)]