1891443920

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{137}}^1\times {\mathrm{293}}^1$

素因数の和:493

約数の個数: 160

約数和(自身を含む): 4829690880

約数和(自身を除く): 2938246960

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 31, 38, 40, 62, 76, 80, 95, 124, 137, 152, 155, 190, 248, 274, 293, 304, 310, 380, 496, 548, 586, 589, 620, 685, 760, 1096, 1172, 1178, 1240, 1370, 1465, 1520, 2192, 2344, 2356, 2480, 2603, 2740, 2930, 2945, 4247, 4688, 4712, 5206, 5480, 5567, 5860, 5890, 8494, 9083, 9424, 10412, 10960, 11134, 11720, 11780, 13015, 16988, 18166, 20824, 21235, 22268, 23440, 23560, 26030, 27835, 33976, 36332, 40141, 41648, 42470, 44536, 45415, 47120, 52060, 55670, 67952, 72664, 80282, 80693, 84940, 89072, 90830, 104120, 111340, 145328, 160564, 161386, 169880, 172577, 181660, 200705, 208240, 222680, 321128, 322772, 339760, 345154, 363320, 401410, 403465, 445360, 642256, 645544, 690308, 726640, 762679, 802820, 806930, 862885, 1244371, 1291088, 1380616, 1525358, 1605640, 1613860, 1725770, 2488742, 2761232, 3050716, 3211280, 3227720, 3451540, 3813395, 4977484, 6101432, 6221855, 6455440, 6903080, 7626790, 9954968, 12202864, 12443710, 13806160, 15253580, 19909936, 23643049, 24887420, 30507160, 47286098, 49774840, 61014320, 94572196, 99549680, 118215245, 189144392, 236430490, 378288784, 472860980, 945721960, 1891443920]

約数ペア:

[(1, 1891443920), (2, 945721960), (4, 472860980), (5, 378288784), (8, 236430490), (10, 189144392), (16, 118215245), (19, 99549680), (20, 94572196), (31, 61014320), (38, 49774840), (40, 47286098), (62, 30507160), (76, 24887420), (80, 23643049), (95, 19909936), (124, 15253580), (137, 13806160), (152, 12443710), (155, 12202864), (190, 9954968), (248, 7626790), (274, 6903080), (293, 6455440), (304, 6221855), (310, 6101432), (380, 4977484), (496, 3813395), (548, 3451540), (586, 3227720), (589, 3211280), (620, 3050716), (685, 2761232), (760, 2488742), (1096, 1725770), (1172, 1613860), (1178, 1605640), (1240, 1525358), (1370, 1380616), (1465, 1291088), (1520, 1244371), (2192, 862885), (2344, 806930), (2356, 802820), (2480, 762679), (2603, 726640), (2740, 690308), (2930, 645544), (2945, 642256), (4247, 445360), (4688, 403465), (4712, 401410), (5206, 363320), (5480, 345154), (5567, 339760), (5860, 322772), (5890, 321128), (8494, 222680), (9083, 208240), (9424, 200705), (10412, 181660), (10960, 172577), (11134, 169880), (11720, 161386), (11780, 160564), (13015, 145328), (16988, 111340), (18166, 104120), (20824, 90830), (21235, 89072), (22268, 84940), (23440, 80693), (23560, 80282), (26030, 72664), (27835, 67952), (33976, 55670), (36332, 52060), (40141, 47120), (41648, 45415), (42470, 44536)]