20222020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{271}}^1$

素因数の和:341

約数の個数: 96

約数和(自身を含む): 53738496

約数和(自身を除く): 33516476

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 41, 52, 65, 70, 82, 91, 130, 140, 164, 182, 205, 260, 271, 287, 364, 410, 455, 533, 542, 574, 820, 910, 1066, 1084, 1148, 1355, 1435, 1820, 1897, 2132, 2665, 2710, 2870, 3523, 3731, 3794, 5330, 5420, 5740, 7046, 7462, 7588, 9485, 10660, 11111, 14092, 14924, 17615, 18655, 18970, 22222, 24661, 35230, 37310, 37940, 44444, 49322, 55555, 70460, 74620, 77777, 98644, 111110, 123305, 144443, 155554, 222220, 246610, 288886, 311108, 388885, 493220, 577772, 722215, 777770, 1011101, 1444430, 1555540, 2022202, 2888860, 4044404, 5055505, 10111010, 20222020]

約数ペア:

[(1, 20222020), (2, 10111010), (4, 5055505), (5, 4044404), (7, 2888860), (10, 2022202), (13, 1555540), (14, 1444430), (20, 1011101), (26, 777770), (28, 722215), (35, 577772), (41, 493220), (52, 388885), (65, 311108), (70, 288886), (82, 246610), (91, 222220), (130, 155554), (140, 144443), (164, 123305), (182, 111110), (205, 98644), (260, 77777), (271, 74620), (287, 70460), (364, 55555), (410, 49322), (455, 44444), (533, 37940), (542, 37310), (574, 35230), (820, 24661), (910, 22222), (1066, 18970), (1084, 18655), (1148, 17615), (1355, 14924), (1435, 14092), (1820, 11111), (1897, 10660), (2132, 9485), (2665, 7588), (2710, 7462), (2870, 7046), (3523, 5740), (3731, 5420), (3794, 5330)]