2872240

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{223}}^1$

素因数の和:266

約数の個数: 80

約数和(自身を含む): 7999488

約数和(自身を除く): 5127248

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 35, 40, 46, 56, 70, 80, 92, 112, 115, 140, 161, 184, 223, 230, 280, 322, 368, 446, 460, 560, 644, 805, 892, 920, 1115, 1288, 1561, 1610, 1784, 1840, 2230, 2576, 3122, 3220, 3568, 4460, 5129, 6244, 6440, 7805, 8920, 10258, 12488, 12880, 15610, 17840, 20516, 24976, 25645, 31220, 35903, 41032, 51290, 62440, 71806, 82064, 102580, 124880, 143612, 179515, 205160, 287224, 359030, 410320, 574448, 718060, 1436120, 2872240]

約数ペア:

[(1, 2872240), (2, 1436120), (4, 718060), (5, 574448), (7, 410320), (8, 359030), (10, 287224), (14, 205160), (16, 179515), (20, 143612), (23, 124880), (28, 102580), (35, 82064), (40, 71806), (46, 62440), (56, 51290), (70, 41032), (80, 35903), (92, 31220), (112, 25645), (115, 24976), (140, 20516), (161, 17840), (184, 15610), (223, 12880), (230, 12488), (280, 10258), (322, 8920), (368, 7805), (446, 6440), (460, 6244), (560, 5129), (644, 4460), (805, 3568), (892, 3220), (920, 3122), (1115, 2576), (1288, 2230), (1561, 1840), (1610, 1784)]