28712460

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{499}}^1$

素因数の和:655

約数の個数: 96

約数和(自身を含む): 92736000

約数和(自身を除く): 64023540

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 137, 140, 210, 274, 411, 420, 499, 548, 685, 822, 959, 998, 1370, 1497, 1644, 1918, 1996, 2055, 2495, 2740, 2877, 2994, 3493, 3836, 4110, 4795, 4990, 5754, 5988, 6986, 7485, 8220, 9590, 9980, 10479, 11508, 13972, 14385, 14970, 17465, 19180, 20958, 28770, 29940, 34930, 41916, 52395, 57540, 68363, 69860, 104790, 136726, 205089, 209580, 273452, 341815, 410178, 478541, 683630, 820356, 957082, 1025445, 1367260, 1435623, 1914164, 2050890, 2392705, 2871246, 4101780, 4785410, 5742492, 7178115, 9570820, 14356230, 28712460]

約数ペア:

[(1, 28712460), (2, 14356230), (3, 9570820), (4, 7178115), (5, 5742492), (6, 4785410), (7, 4101780), (10, 2871246), (12, 2392705), (14, 2050890), (15, 1914164), (20, 1435623), (21, 1367260), (28, 1025445), (30, 957082), (35, 820356), (42, 683630), (60, 478541), (70, 410178), (84, 341815), (105, 273452), (137, 209580), (140, 205089), (210, 136726), (274, 104790), (411, 69860), (420, 68363), (499, 57540), (548, 52395), (685, 41916), (822, 34930), (959, 29940), (998, 28770), (1370, 20958), (1497, 19180), (1644, 17465), (1918, 14970), (1996, 14385), (2055, 13972), (2495, 11508), (2740, 10479), (2877, 9980), (2994, 9590), (3493, 8220), (3836, 7485), (4110, 6986), (4795, 5988), (4990, 5754)]