21694960

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{2039}}^1$

素因数の和:2078

約数の個数: 80

約数和(自身を含む): 60710400

約数和(自身を除く): 39015440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 35, 38, 40, 56, 70, 76, 80, 95, 112, 133, 140, 152, 190, 266, 280, 304, 380, 532, 560, 665, 760, 1064, 1330, 1520, 2039, 2128, 2660, 4078, 5320, 8156, 10195, 10640, 14273, 16312, 20390, 28546, 32624, 38741, 40780, 57092, 71365, 77482, 81560, 114184, 142730, 154964, 163120, 193705, 228368, 271187, 285460, 309928, 387410, 542374, 570920, 619856, 774820, 1084748, 1141840, 1355935, 1549640, 2169496, 2711870, 3099280, 4338992, 5423740, 10847480, 21694960]

約数ペア:

[(1, 21694960), (2, 10847480), (4, 5423740), (5, 4338992), (7, 3099280), (8, 2711870), (10, 2169496), (14, 1549640), (16, 1355935), (19, 1141840), (20, 1084748), (28, 774820), (35, 619856), (38, 570920), (40, 542374), (56, 387410), (70, 309928), (76, 285460), (80, 271187), (95, 228368), (112, 193705), (133, 163120), (140, 154964), (152, 142730), (190, 114184), (266, 81560), (280, 77482), (304, 71365), (380, 57092), (532, 40780), (560, 38741), (665, 32624), (760, 28546), (1064, 20390), (1330, 16312), (1520, 14273), (2039, 10640), (2128, 10195), (2660, 8156), (4078, 5320)]