213690815

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{7523}}^1$

素因数の和:7583

約数の個数: 32

約数和(自身を含む): 303367680

約数和(自身を除く): 89676865

約数列:

[1, 5, 13, 19, 23, 65, 95, 115, 247, 299, 437, 1235, 1495, 2185, 5681, 7523, 28405, 37615, 97799, 142937, 173029, 488995, 714685, 865145, 1858181, 2249377, 3287551, 9290905, 11246885, 16437755, 42738163, 213690815]

約数ペア:

[(1, 213690815), (5, 42738163), (13, 16437755), (19, 11246885), (23, 9290905), (65, 3287551), (95, 2249377), (115, 1858181), (247, 865145), (299, 714685), (437, 488995), (1235, 173029), (1495, 142937), (2185, 97799), (5681, 37615), (7523, 28405)]