81858140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{1097}}^1$

素因数の和:1167

約数の個数: 96

約数和(自身を含む): 216929664

約数和(自身を除く): 135071524

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 41, 52, 65, 70, 82, 91, 130, 140, 164, 182, 205, 260, 287, 364, 410, 455, 533, 574, 820, 910, 1066, 1097, 1148, 1435, 1820, 2132, 2194, 2665, 2870, 3731, 4388, 5330, 5485, 5740, 7462, 7679, 10660, 10970, 14261, 14924, 15358, 18655, 21940, 28522, 30716, 37310, 38395, 44977, 57044, 71305, 74620, 76790, 89954, 99827, 142610, 153580, 179908, 199654, 224885, 285220, 314839, 399308, 449770, 499135, 584701, 629678, 899540, 998270, 1169402, 1259356, 1574195, 1996540, 2338804, 2923505, 3148390, 4092907, 5847010, 6296780, 8185814, 11694020, 16371628, 20464535, 40929070, 81858140]

約数ペア:

[(1, 81858140), (2, 40929070), (4, 20464535), (5, 16371628), (7, 11694020), (10, 8185814), (13, 6296780), (14, 5847010), (20, 4092907), (26, 3148390), (28, 2923505), (35, 2338804), (41, 1996540), (52, 1574195), (65, 1259356), (70, 1169402), (82, 998270), (91, 899540), (130, 629678), (140, 584701), (164, 499135), (182, 449770), (205, 399308), (260, 314839), (287, 285220), (364, 224885), (410, 199654), (455, 179908), (533, 153580), (574, 142610), (820, 99827), (910, 89954), (1066, 76790), (1097, 74620), (1148, 71305), (1435, 57044), (1820, 44977), (2132, 38395), (2194, 37310), (2665, 30716), (2870, 28522), (3731, 21940), (4388, 18655), (5330, 15358), (5485, 14924), (5740, 14261), (7462, 10970), (7679, 10660)]