81863172

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{4127}}^1$

素因数の和:4185

約数の個数: 72

約数和(自身を含む): 225388800

約数和(自身を除く): 143525628

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 29, 36, 38, 57, 58, 76, 87, 114, 116, 171, 174, 228, 261, 342, 348, 522, 551, 684, 1044, 1102, 1653, 2204, 3306, 4127, 4959, 6612, 8254, 9918, 12381, 16508, 19836, 24762, 37143, 49524, 74286, 78413, 119683, 148572, 156826, 235239, 239366, 313652, 359049, 470478, 478732, 705717, 718098, 940956, 1077147, 1411434, 1436196, 2154294, 2273977, 2822868, 4308588, 4547954, 6821931, 9095908, 13643862, 20465793, 27287724, 40931586, 81863172]

約数ペア:

[(1, 81863172), (2, 40931586), (3, 27287724), (4, 20465793), (6, 13643862), (9, 9095908), (12, 6821931), (18, 4547954), (19, 4308588), (29, 2822868), (36, 2273977), (38, 2154294), (57, 1436196), (58, 1411434), (76, 1077147), (87, 940956), (114, 718098), (116, 705717), (171, 478732), (174, 470478), (228, 359049), (261, 313652), (342, 239366), (348, 235239), (522, 156826), (551, 148572), (684, 119683), (1044, 78413), (1102, 74286), (1653, 49524), (2204, 37143), (3306, 24762), (4127, 19836), (4959, 16508), (6612, 12381), (8254, 9918)]