20139447640

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{617}}^1\times {\mathrm{1531}}^1$

素因数の和:2213

約数の個数: 128

約数和(自身を含む): 50103385920

約数和(自身を除く): 29963938280

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 41, 52, 65, 82, 104, 130, 164, 205, 260, 328, 410, 520, 533, 617, 820, 1066, 1234, 1531, 1640, 2132, 2468, 2665, 3062, 3085, 4264, 4936, 5330, 6124, 6170, 7655, 8021, 10660, 12248, 12340, 15310, 16042, 19903, 21320, 24680, 25297, 30620, 32084, 39806, 40105, 50594, 61240, 62771, 64168, 79612, 80210, 99515, 101188, 125542, 126485, 159224, 160420, 199030, 202376, 251084, 252970, 313855, 320840, 328861, 398060, 502168, 505940, 627710, 657722, 796120, 816023, 944627, 1011880, 1255420, 1315444, 1632046, 1644305, 1889254, 2510840, 2630888, 3264092, 3288610, 3778508, 4080115, 4723135, 6528184, 6577220, 7557016, 8160230, 9446270, 12280151, 13154440, 16320460, 18892540, 24560302, 32640920, 37785080, 38729707, 49120604, 61400755, 77459414, 98241208, 122801510, 154918828, 193648535, 245603020, 309837656, 387297070, 491206040, 503486191, 774594140, 1006972382, 1549188280, 2013944764, 2517430955, 4027889528, 5034861910, 10069723820, 20139447640]

約数ペア:

[(1, 20139447640), (2, 10069723820), (4, 5034861910), (5, 4027889528), (8, 2517430955), (10, 2013944764), (13, 1549188280), (20, 1006972382), (26, 774594140), (40, 503486191), (41, 491206040), (52, 387297070), (65, 309837656), (82, 245603020), (104, 193648535), (130, 154918828), (164, 122801510), (205, 98241208), (260, 77459414), (328, 61400755), (410, 49120604), (520, 38729707), (533, 37785080), (617, 32640920), (820, 24560302), (1066, 18892540), (1234, 16320460), (1531, 13154440), (1640, 12280151), (2132, 9446270), (2468, 8160230), (2665, 7557016), (3062, 6577220), (3085, 6528184), (4264, 4723135), (4936, 4080115), (5330, 3778508), (6124, 3288610), (6170, 3264092), (7655, 2630888), (8021, 2510840), (10660, 1889254), (12248, 1644305), (12340, 1632046), (15310, 1315444), (16042, 1255420), (19903, 1011880), (21320, 944627), (24680, 816023), (25297, 796120), (30620, 657722), (32084, 627710), (39806, 505940), (40105, 502168), (50594, 398060), (61240, 328861), (62771, 320840), (64168, 313855), (79612, 252970), (80210, 251084), (99515, 202376), (101188, 199030), (125542, 160420), (126485, 159224)]