977774840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{191}}^1\times {\mathrm{389}}^1$

素因数の和:645

約数の個数: 128

約数和(自身を含む): 2587852800

約数和(自身を除く): 1610077960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 47, 56, 70, 94, 140, 188, 191, 235, 280, 329, 376, 382, 389, 470, 658, 764, 778, 940, 955, 1316, 1337, 1528, 1556, 1645, 1880, 1910, 1945, 2632, 2674, 2723, 3112, 3290, 3820, 3890, 5348, 5446, 6580, 6685, 7640, 7780, 8977, 10696, 10892, 13160, 13370, 13615, 15560, 17954, 18283, 21784, 26740, 27230, 35908, 36566, 44885, 53480, 54460, 62839, 71816, 73132, 74299, 89770, 91415, 108920, 125678, 127981, 146264, 148598, 179540, 182830, 251356, 255962, 297196, 314195, 359080, 365660, 371495, 502712, 511924, 520093, 594392, 628390, 639905, 731320, 742990, 1023848, 1040186, 1256780, 1279810, 1485980, 2080372, 2513560, 2559620, 2600465, 2971960, 3492053, 4160744, 5119240, 5200930, 6984106, 10401860, 13968212, 17460265, 20803720, 24444371, 27936424, 34920530, 48888742, 69841060, 97777484, 122221855, 139682120, 195554968, 244443710, 488887420, 977774840]

約数ペア:

[(1, 977774840), (2, 488887420), (4, 244443710), (5, 195554968), (7, 139682120), (8, 122221855), (10, 97777484), (14, 69841060), (20, 48888742), (28, 34920530), (35, 27936424), (40, 24444371), (47, 20803720), (56, 17460265), (70, 13968212), (94, 10401860), (140, 6984106), (188, 5200930), (191, 5119240), (235, 4160744), (280, 3492053), (329, 2971960), (376, 2600465), (382, 2559620), (389, 2513560), (470, 2080372), (658, 1485980), (764, 1279810), (778, 1256780), (940, 1040186), (955, 1023848), (1316, 742990), (1337, 731320), (1528, 639905), (1556, 628390), (1645, 594392), (1880, 520093), (1910, 511924), (1945, 502712), (2632, 371495), (2674, 365660), (2723, 359080), (3112, 314195), (3290, 297196), (3820, 255962), (3890, 251356), (5348, 182830), (5446, 179540), (6580, 148598), (6685, 146264), (7640, 127981), (7780, 125678), (8977, 108920), (10696, 91415), (10892, 89770), (13160, 74299), (13370, 73132), (13615, 71816), (15560, 62839), (17954, 54460), (18283, 53480), (21784, 44885), (26740, 36566), (27230, 35908)]