28348190

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{499}}^1$

素因数の和:561

約数の個数: 64

約数和(自身を含む): 60480000

約数和(自身を除く): 32131810

約数列:

[1, 2, 5, 10, 13, 19, 23, 26, 38, 46, 65, 95, 115, 130, 190, 230, 247, 299, 437, 494, 499, 598, 874, 998, 1235, 1495, 2185, 2470, 2495, 2990, 4370, 4990, 5681, 6487, 9481, 11362, 11477, 12974, 18962, 22954, 28405, 32435, 47405, 56810, 57385, 64870, 94810, 114770, 123253, 149201, 218063, 246506, 298402, 436126, 616265, 746005, 1090315, 1232530, 1492010, 2180630, 2834819, 5669638, 14174095, 28348190]

約数ペア:

[(1, 28348190), (2, 14174095), (5, 5669638), (10, 2834819), (13, 2180630), (19, 1492010), (23, 1232530), (26, 1090315), (38, 746005), (46, 616265), (65, 436126), (95, 298402), (115, 246506), (130, 218063), (190, 149201), (230, 123253), (247, 114770), (299, 94810), (437, 64870), (494, 57385), (499, 56810), (598, 47405), (874, 32435), (998, 28405), (1235, 22954), (1495, 18962), (2185, 12974), (2470, 11477), (2495, 11362), (2990, 9481), (4370, 6487), (4990, 5681)]