308968975

素因数分解:

$5^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{2161}}^1$

素因数の和:2240

約数の個数: 48

約数和(自身を含む): 471834880

約数和(自身を除く): 162865905

約数列:

[1, 5, 7, 19, 25, 35, 43, 95, 133, 175, 215, 301, 475, 665, 817, 1075, 1505, 2161, 3325, 4085, 5719, 7525, 10805, 15127, 20425, 28595, 41059, 54025, 75635, 92923, 142975, 205295, 287413, 378175, 464615, 650461, 1026475, 1437065, 1765537, 2323075, 3252305, 7185325, 8827685, 12358759, 16261525, 44138425, 61793795, 308968975]

約数ペア:

[(1, 308968975), (5, 61793795), (7, 44138425), (19, 16261525), (25, 12358759), (35, 8827685), (43, 7185325), (95, 3252305), (133, 2323075), (175, 1765537), (215, 1437065), (301, 1026475), (475, 650461), (665, 464615), (817, 378175), (1075, 287413), (1505, 205295), (2161, 142975), (3325, 92923), (4085, 75635), (5719, 54025), (7525, 41059), (10805, 28595), (15127, 20425)]