21902440

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{179}}^1$

素因数の和:239

約数の個数: 128

約数和(自身を含む): 62208000

約数和(自身を除く): 40305560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 23, 28, 35, 38, 40, 46, 56, 70, 76, 92, 95, 115, 133, 140, 152, 161, 179, 184, 190, 230, 266, 280, 322, 358, 380, 437, 460, 532, 644, 665, 716, 760, 805, 874, 895, 920, 1064, 1253, 1288, 1330, 1432, 1610, 1748, 1790, 2185, 2506, 2660, 3059, 3220, 3401, 3496, 3580, 4117, 4370, 5012, 5320, 6118, 6265, 6440, 6802, 7160, 8234, 8740, 10024, 12236, 12530, 13604, 15295, 16468, 17005, 17480, 20585, 23807, 24472, 25060, 27208, 28819, 30590, 32936, 34010, 41170, 47614, 50120, 57638, 61180, 68020, 78223, 82340, 95228, 115276, 119035, 122360, 136040, 144095, 156446, 164680, 190456, 230552, 238070, 288190, 312892, 391115, 476140, 547561, 576380, 625784, 782230, 952280, 1095122, 1152760, 1564460, 2190244, 2737805, 3128920, 4380488, 5475610, 10951220, 21902440]

約数ペア:

[(1, 21902440), (2, 10951220), (4, 5475610), (5, 4380488), (7, 3128920), (8, 2737805), (10, 2190244), (14, 1564460), (19, 1152760), (20, 1095122), (23, 952280), (28, 782230), (35, 625784), (38, 576380), (40, 547561), (46, 476140), (56, 391115), (70, 312892), (76, 288190), (92, 238070), (95, 230552), (115, 190456), (133, 164680), (140, 156446), (152, 144095), (161, 136040), (179, 122360), (184, 119035), (190, 115276), (230, 95228), (266, 82340), (280, 78223), (322, 68020), (358, 61180), (380, 57638), (437, 50120), (460, 47614), (532, 41170), (644, 34010), (665, 32936), (716, 30590), (760, 28819), (805, 27208), (874, 25060), (895, 24472), (920, 23807), (1064, 20585), (1253, 17480), (1288, 17005), (1330, 16468), (1432, 15295), (1610, 13604), (1748, 12530), (1790, 12236), (2185, 10024), (2506, 8740), (2660, 8234), (3059, 7160), (3220, 6802), (3401, 6440), (3496, 6265), (3580, 6118), (4117, 5320), (4370, 5012)]