81838140

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{1913}}^1$

素因数の和:1979

約数の個数: 96

約数和(自身を含む): 246951936

約数和(自身を除く): 165113796

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 23, 30, 31, 46, 60, 62, 69, 92, 93, 115, 124, 138, 155, 186, 230, 276, 310, 345, 372, 460, 465, 620, 690, 713, 930, 1380, 1426, 1860, 1913, 2139, 2852, 3565, 3826, 4278, 5739, 7130, 7652, 8556, 9565, 10695, 11478, 14260, 19130, 21390, 22956, 28695, 38260, 42780, 43999, 57390, 59303, 87998, 114780, 118606, 131997, 175996, 177909, 219995, 237212, 263994, 296515, 355818, 439990, 527988, 593030, 659985, 711636, 879980, 889545, 1186060, 1319970, 1363969, 1779090, 2639940, 2727938, 3558180, 4091907, 5455876, 6819845, 8183814, 13639690, 16367628, 20459535, 27279380, 40919070, 81838140]

約数ペア:

[(1, 81838140), (2, 40919070), (3, 27279380), (4, 20459535), (5, 16367628), (6, 13639690), (10, 8183814), (12, 6819845), (15, 5455876), (20, 4091907), (23, 3558180), (30, 2727938), (31, 2639940), (46, 1779090), (60, 1363969), (62, 1319970), (69, 1186060), (92, 889545), (93, 879980), (115, 711636), (124, 659985), (138, 593030), (155, 527988), (186, 439990), (230, 355818), (276, 296515), (310, 263994), (345, 237212), (372, 219995), (460, 177909), (465, 175996), (620, 131997), (690, 118606), (713, 114780), (930, 87998), (1380, 59303), (1426, 57390), (1860, 43999), (1913, 42780), (2139, 38260), (2852, 28695), (3565, 22956), (3826, 21390), (4278, 19130), (5739, 14260), (7130, 11478), (7652, 10695), (8556, 9565)]