28547480

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^2\times {\mathrm{41}}^1\times {\mathrm{103}}^1$

素因数の和:181

約数の個数: 96

約数和(自身を含む): 71940960

約数和(自身を除く): 43393480

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 41, 52, 65, 82, 103, 104, 130, 164, 169, 205, 206, 260, 328, 338, 410, 412, 515, 520, 533, 676, 820, 824, 845, 1030, 1066, 1339, 1352, 1640, 1690, 2060, 2132, 2665, 2678, 3380, 4120, 4223, 4264, 5330, 5356, 6695, 6760, 6929, 8446, 10660, 10712, 13390, 13858, 16892, 17407, 21115, 21320, 26780, 27716, 33784, 34645, 34814, 42230, 53560, 54899, 55432, 69290, 69628, 84460, 87035, 109798, 138580, 139256, 168920, 174070, 219596, 274495, 277160, 348140, 439192, 548990, 696280, 713687, 1097980, 1427374, 2195960, 2854748, 3568435, 5709496, 7136870, 14273740, 28547480]

約数ペア:

[(1, 28547480), (2, 14273740), (4, 7136870), (5, 5709496), (8, 3568435), (10, 2854748), (13, 2195960), (20, 1427374), (26, 1097980), (40, 713687), (41, 696280), (52, 548990), (65, 439192), (82, 348140), (103, 277160), (104, 274495), (130, 219596), (164, 174070), (169, 168920), (205, 139256), (206, 138580), (260, 109798), (328, 87035), (338, 84460), (410, 69628), (412, 69290), (515, 55432), (520, 54899), (533, 53560), (676, 42230), (820, 34814), (824, 34645), (845, 33784), (1030, 27716), (1066, 26780), (1339, 21320), (1352, 21115), (1640, 17407), (1690, 16892), (2060, 13858), (2132, 13390), (2665, 10712), (2678, 10660), (3380, 8446), (4120, 6929), (4223, 6760), (4264, 6695), (5330, 5356)]