218218765

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{1129}}^1$

素因数の和:1237

約数の個数: 32

約数和(自身を含む): 286387200

約数和(自身を除く): 68168435

約数列:

[1, 5, 29, 31, 43, 145, 155, 215, 899, 1129, 1247, 1333, 4495, 5645, 6235, 6665, 32741, 34999, 38657, 48547, 163705, 174995, 193285, 242735, 1014971, 1407863, 1504957, 5074855, 7039315, 7524785, 43643753, 218218765]

約数ペア:

[(1, 218218765), (5, 43643753), (29, 7524785), (31, 7039315), (43, 5074855), (145, 1504957), (155, 1407863), (215, 1014971), (899, 242735), (1129, 193285), (1247, 174995), (1333, 163705), (4495, 48547), (5645, 38657), (6235, 34999), (6665, 32741)]