278311715

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{229}}^1\times {\mathrm{1163}}^1$

素因数の和:1427

約数の個数: 32

約数和(自身を含む): 385516800

約数和(自身を除く): 107205085

約数列:

[1, 5, 11, 19, 55, 95, 209, 229, 1045, 1145, 1163, 2519, 4351, 5815, 12595, 12793, 21755, 22097, 47861, 63965, 110485, 239305, 243067, 266327, 1215335, 1331635, 2929597, 5060213, 14647985, 25301065, 55662343, 278311715]

約数ペア:

[(1, 278311715), (5, 55662343), (11, 25301065), (19, 14647985), (55, 5060213), (95, 2929597), (209, 1331635), (229, 1215335), (1045, 266327), (1145, 243067), (1163, 239305), (2519, 110485), (4351, 63965), (5815, 47861), (12595, 22097), (12793, 21755)]