21200480

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{823}}^1$

素因数の和:868

約数の個数: 96

約数和(自身を含む): 59802624

約数和(自身を除く): 38602144

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 32, 35, 40, 46, 56, 70, 80, 92, 112, 115, 140, 160, 161, 184, 224, 230, 280, 322, 368, 460, 560, 644, 736, 805, 823, 920, 1120, 1288, 1610, 1646, 1840, 2576, 3220, 3292, 3680, 4115, 5152, 5761, 6440, 6584, 8230, 11522, 12880, 13168, 16460, 18929, 23044, 25760, 26336, 28805, 32920, 37858, 46088, 57610, 65840, 75716, 92176, 94645, 115220, 131680, 132503, 151432, 184352, 189290, 230440, 265006, 302864, 378580, 460880, 530012, 605728, 662515, 757160, 921760, 1060024, 1325030, 1514320, 2120048, 2650060, 3028640, 4240096, 5300120, 10600240, 21200480]

約数ペア:

[(1, 21200480), (2, 10600240), (4, 5300120), (5, 4240096), (7, 3028640), (8, 2650060), (10, 2120048), (14, 1514320), (16, 1325030), (20, 1060024), (23, 921760), (28, 757160), (32, 662515), (35, 605728), (40, 530012), (46, 460880), (56, 378580), (70, 302864), (80, 265006), (92, 230440), (112, 189290), (115, 184352), (140, 151432), (160, 132503), (161, 131680), (184, 115220), (224, 94645), (230, 92176), (280, 75716), (322, 65840), (368, 57610), (460, 46088), (560, 37858), (644, 32920), (736, 28805), (805, 26336), (823, 25760), (920, 23044), (1120, 18929), (1288, 16460), (1610, 13168), (1646, 12880), (1840, 11522), (2576, 8230), (3220, 6584), (3292, 6440), (3680, 5761), (4115, 5152)]