660861520

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{503}}^1\times {\mathrm{1493}}^1$

素因数の和:2020

約数の個数: 80

約数和(自身を含む): 1680642432

約数和(自身を除く): 1019780912

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 503, 880, 1006, 1493, 2012, 2515, 2986, 4024, 5030, 5533, 5972, 7465, 8048, 10060, 11066, 11944, 14930, 16423, 20120, 22132, 23888, 27665, 29860, 32846, 40240, 44264, 55330, 59720, 65692, 82115, 88528, 110660, 119440, 131384, 164230, 221320, 262768, 328460, 442640, 656920, 750979, 1313840, 1501958, 3003916, 3754895, 6007832, 7509790, 8260769, 12015664, 15019580, 16521538, 30039160, 33043076, 41303845, 60078320, 66086152, 82607690, 132172304, 165215380, 330430760, 660861520]

約数ペア:

[(1, 660861520), (2, 330430760), (4, 165215380), (5, 132172304), (8, 82607690), (10, 66086152), (11, 60078320), (16, 41303845), (20, 33043076), (22, 30039160), (40, 16521538), (44, 15019580), (55, 12015664), (80, 8260769), (88, 7509790), (110, 6007832), (176, 3754895), (220, 3003916), (440, 1501958), (503, 1313840), (880, 750979), (1006, 656920), (1493, 442640), (2012, 328460), (2515, 262768), (2986, 221320), (4024, 164230), (5030, 131384), (5533, 119440), (5972, 110660), (7465, 88528), (8048, 82115), (10060, 65692), (11066, 59720), (11944, 55330), (14930, 44264), (16423, 40240), (20120, 32846), (22132, 29860), (23888, 27665)]