2019988880

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{293}}^1\times {\mathrm{947}}^1$

素因数の和:1273

約数の個数: 160

約数和(自身を含む): 5806128384

約数和(自身を除く): 3786139504

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 35, 40, 52, 56, 65, 70, 80, 91, 104, 112, 130, 140, 182, 208, 260, 280, 293, 364, 455, 520, 560, 586, 728, 910, 947, 1040, 1172, 1456, 1465, 1820, 1894, 2051, 2344, 2930, 3640, 3788, 3809, 4102, 4688, 4735, 5860, 6629, 7280, 7576, 7618, 8204, 9470, 10255, 11720, 12311, 13258, 15152, 15236, 16408, 18940, 19045, 20510, 23440, 24622, 26516, 26663, 30472, 32816, 33145, 37880, 38090, 41020, 49244, 53032, 53326, 60944, 61555, 66290, 75760, 76180, 82040, 86177, 98488, 106064, 106652, 123110, 132580, 133315, 152360, 164080, 172354, 196976, 213304, 246220, 265160, 266630, 277471, 304720, 344708, 426608, 430885, 492440, 530320, 533260, 554942, 689416, 861770, 984880, 1066520, 1109884, 1378832, 1387355, 1723540, 1942297, 2133040, 2219768, 2774710, 3447080, 3607123, 3884594, 4439536, 5549420, 6894160, 7214246, 7769188, 9711485, 11098840, 14428492, 15538376, 18035615, 19422970, 22197680, 25249861, 28856984, 31076752, 36071230, 38845940, 50499722, 57713968, 72142460, 77691880, 100999444, 126249305, 144284920, 155383760, 201998888, 252498610, 288569840, 403997776, 504997220, 1009994440, 2019988880]

約数ペア:

[(1, 2019988880), (2, 1009994440), (4, 504997220), (5, 403997776), (7, 288569840), (8, 252498610), (10, 201998888), (13, 155383760), (14, 144284920), (16, 126249305), (20, 100999444), (26, 77691880), (28, 72142460), (35, 57713968), (40, 50499722), (52, 38845940), (56, 36071230), (65, 31076752), (70, 28856984), (80, 25249861), (91, 22197680), (104, 19422970), (112, 18035615), (130, 15538376), (140, 14428492), (182, 11098840), (208, 9711485), (260, 7769188), (280, 7214246), (293, 6894160), (364, 5549420), (455, 4439536), (520, 3884594), (560, 3607123), (586, 3447080), (728, 2774710), (910, 2219768), (947, 2133040), (1040, 1942297), (1172, 1723540), (1456, 1387355), (1465, 1378832), (1820, 1109884), (1894, 1066520), (2051, 984880), (2344, 861770), (2930, 689416), (3640, 554942), (3788, 533260), (3809, 530320), (4102, 492440), (4688, 430885), (4735, 426608), (5860, 344708), (6629, 304720), (7280, 277471), (7576, 266630), (7618, 265160), (8204, 246220), (9470, 213304), (10255, 196976), (11720, 172354), (12311, 164080), (13258, 152360), (15152, 133315), (15236, 132580), (16408, 123110), (18940, 106652), (19045, 106064), (20510, 98488), (23440, 86177), (24622, 82040), (26516, 76180), (26663, 75760), (30472, 66290), (32816, 61555), (33145, 60944), (37880, 53326), (38090, 53032), (41020, 49244)]