204759660

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{499}}^1\times {\mathrm{977}}^1$

素因数の和:1495

約数の個数: 96

約数和(自身を含む): 657216000

約数和(自身を除く): 452456340

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 499, 977, 998, 1497, 1954, 1996, 2495, 2931, 2994, 3493, 3908, 4885, 4990, 5862, 5988, 6839, 6986, 7485, 9770, 9980, 10479, 11724, 13678, 13972, 14655, 14970, 17465, 19540, 20517, 20958, 27356, 29310, 29940, 34195, 34930, 41034, 41916, 52395, 58620, 68390, 69860, 82068, 102585, 104790, 136780, 205170, 209580, 410340, 487523, 975046, 1462569, 1950092, 2437615, 2925138, 3412661, 4875230, 5850276, 6825322, 7312845, 9750460, 10237983, 13650644, 14625690, 17063305, 20475966, 29251380, 34126610, 40951932, 51189915, 68253220, 102379830, 204759660]

約数ペア:

[(1, 204759660), (2, 102379830), (3, 68253220), (4, 51189915), (5, 40951932), (6, 34126610), (7, 29251380), (10, 20475966), (12, 17063305), (14, 14625690), (15, 13650644), (20, 10237983), (21, 9750460), (28, 7312845), (30, 6825322), (35, 5850276), (42, 4875230), (60, 3412661), (70, 2925138), (84, 2437615), (105, 1950092), (140, 1462569), (210, 975046), (420, 487523), (499, 410340), (977, 209580), (998, 205170), (1497, 136780), (1954, 104790), (1996, 102585), (2495, 82068), (2931, 69860), (2994, 68390), (3493, 58620), (3908, 52395), (4885, 41916), (4990, 41034), (5862, 34930), (5988, 34195), (6839, 29940), (6986, 29310), (7485, 27356), (9770, 20958), (9980, 20517), (10479, 19540), (11724, 17465), (13678, 14970), (13972, 14655)]