40444040

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{271}}^1$

素因数の和:343

約数の個数: 128

約数和(自身を含む): 115153920

約数和(自身を除く): 74709880

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 41, 52, 56, 65, 70, 82, 91, 104, 130, 140, 164, 182, 205, 260, 271, 280, 287, 328, 364, 410, 455, 520, 533, 542, 574, 728, 820, 910, 1066, 1084, 1148, 1355, 1435, 1640, 1820, 1897, 2132, 2168, 2296, 2665, 2710, 2870, 3523, 3640, 3731, 3794, 4264, 5330, 5420, 5740, 7046, 7462, 7588, 9485, 10660, 10840, 11111, 11480, 14092, 14924, 15176, 17615, 18655, 18970, 21320, 22222, 24661, 28184, 29848, 35230, 37310, 37940, 44444, 49322, 55555, 70460, 74620, 75880, 77777, 88888, 98644, 111110, 123305, 140920, 144443, 149240, 155554, 197288, 222220, 246610, 288886, 311108, 388885, 444440, 493220, 577772, 622216, 722215, 777770, 986440, 1011101, 1155544, 1444430, 1555540, 2022202, 2888860, 3111080, 4044404, 5055505, 5777720, 8088808, 10111010, 20222020, 40444040]

約数ペア:

[(1, 40444040), (2, 20222020), (4, 10111010), (5, 8088808), (7, 5777720), (8, 5055505), (10, 4044404), (13, 3111080), (14, 2888860), (20, 2022202), (26, 1555540), (28, 1444430), (35, 1155544), (40, 1011101), (41, 986440), (52, 777770), (56, 722215), (65, 622216), (70, 577772), (82, 493220), (91, 444440), (104, 388885), (130, 311108), (140, 288886), (164, 246610), (182, 222220), (205, 197288), (260, 155554), (271, 149240), (280, 144443), (287, 140920), (328, 123305), (364, 111110), (410, 98644), (455, 88888), (520, 77777), (533, 75880), (542, 74620), (574, 70460), (728, 55555), (820, 49322), (910, 44444), (1066, 37940), (1084, 37310), (1148, 35230), (1355, 29848), (1435, 28184), (1640, 24661), (1820, 22222), (1897, 21320), (2132, 18970), (2168, 18655), (2296, 17615), (2665, 15176), (2710, 14924), (2870, 14092), (3523, 11480), (3640, 11111), (3731, 10840), (3794, 10660), (4264, 9485), (5330, 7588), (5420, 7462), (5740, 7046)]