21829280

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{157}}^1$

素因数の和:262

約数の個数: 96

約数和(自身を含む): 57335040

約数和(自身を除く): 35505760

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 79, 80, 88, 110, 157, 158, 160, 176, 220, 314, 316, 352, 395, 440, 628, 632, 785, 790, 869, 880, 1256, 1264, 1570, 1580, 1727, 1738, 1760, 2512, 2528, 3140, 3160, 3454, 3476, 4345, 5024, 6280, 6320, 6908, 6952, 8635, 8690, 12403, 12560, 12640, 13816, 13904, 17270, 17380, 24806, 25120, 27632, 27808, 34540, 34760, 49612, 55264, 62015, 69080, 69520, 99224, 124030, 136433, 138160, 139040, 198448, 248060, 272866, 276320, 396896, 496120, 545732, 682165, 992240, 1091464, 1364330, 1984480, 2182928, 2728660, 4365856, 5457320, 10914640, 21829280]

約数ペア:

[(1, 21829280), (2, 10914640), (4, 5457320), (5, 4365856), (8, 2728660), (10, 2182928), (11, 1984480), (16, 1364330), (20, 1091464), (22, 992240), (32, 682165), (40, 545732), (44, 496120), (55, 396896), (79, 276320), (80, 272866), (88, 248060), (110, 198448), (157, 139040), (158, 138160), (160, 136433), (176, 124030), (220, 99224), (314, 69520), (316, 69080), (352, 62015), (395, 55264), (440, 49612), (628, 34760), (632, 34540), (785, 27808), (790, 27632), (869, 25120), (880, 24806), (1256, 17380), (1264, 17270), (1570, 13904), (1580, 13816), (1727, 12640), (1738, 12560), (1760, 12403), (2512, 8690), (2528, 8635), (3140, 6952), (3160, 6908), (3454, 6320), (3476, 6280), (4345, 5024)]