28057072

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{89}}^1$

素因数の和:194

約数の個数: 80

約数和(自身を含む): 62272800

約数和(自身を除く): 34215728

約数列:

[1, 2, 4, 8, 16, 17, 19, 34, 38, 61, 68, 76, 89, 122, 136, 152, 178, 244, 272, 304, 323, 356, 488, 646, 712, 976, 1037, 1159, 1292, 1424, 1513, 1691, 2074, 2318, 2584, 3026, 3382, 4148, 4636, 5168, 5429, 6052, 6764, 8296, 9272, 10858, 12104, 13528, 16592, 18544, 19703, 21716, 24208, 27056, 28747, 39406, 43432, 57494, 78812, 86864, 92293, 103151, 114988, 157624, 184586, 206302, 229976, 315248, 369172, 412604, 459952, 738344, 825208, 1476688, 1650416, 1753567, 3507134, 7014268, 14028536, 28057072]

約数ペア:

[(1, 28057072), (2, 14028536), (4, 7014268), (8, 3507134), (16, 1753567), (17, 1650416), (19, 1476688), (34, 825208), (38, 738344), (61, 459952), (68, 412604), (76, 369172), (89, 315248), (122, 229976), (136, 206302), (152, 184586), (178, 157624), (244, 114988), (272, 103151), (304, 92293), (323, 86864), (356, 78812), (488, 57494), (646, 43432), (712, 39406), (976, 28747), (1037, 27056), (1159, 24208), (1292, 21716), (1424, 19703), (1513, 18544), (1691, 16592), (2074, 13528), (2318, 12104), (2584, 10858), (3026, 9272), (3382, 8296), (4148, 6764), (4636, 6052), (5168, 5429)]