123999680

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{281}}^1$

素因数の和:502

約数の個数: 112

約数和(自身を含む): 340376256

約数和(自身を除く): 216376576

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 140, 160, 197, 224, 280, 281, 320, 394, 448, 560, 562, 788, 985, 1120, 1124, 1379, 1405, 1576, 1967, 1970, 2240, 2248, 2758, 2810, 3152, 3934, 3940, 4496, 5516, 5620, 6304, 6895, 7868, 7880, 8992, 9835, 11032, 11240, 12608, 13790, 15736, 15760, 17984, 19670, 22064, 22480, 27580, 31472, 31520, 39340, 44128, 44960, 55160, 55357, 62944, 63040, 78680, 88256, 89920, 110320, 110714, 125888, 157360, 220640, 221428, 276785, 314720, 387499, 441280, 442856, 553570, 629440, 774998, 885712, 1107140, 1549996, 1771424, 1937495, 2214280, 3099992, 3542848, 3874990, 4428560, 6199984, 7749980, 8857120, 12399968, 15499960, 17714240, 24799936, 30999920, 61999840, 123999680]

約数ペア:

[(1, 123999680), (2, 61999840), (4, 30999920), (5, 24799936), (7, 17714240), (8, 15499960), (10, 12399968), (14, 8857120), (16, 7749980), (20, 6199984), (28, 4428560), (32, 3874990), (35, 3542848), (40, 3099992), (56, 2214280), (64, 1937495), (70, 1771424), (80, 1549996), (112, 1107140), (140, 885712), (160, 774998), (197, 629440), (224, 553570), (280, 442856), (281, 441280), (320, 387499), (394, 314720), (448, 276785), (560, 221428), (562, 220640), (788, 157360), (985, 125888), (1120, 110714), (1124, 110320), (1379, 89920), (1405, 88256), (1576, 78680), (1967, 63040), (1970, 62944), (2240, 55357), (2248, 55160), (2758, 44960), (2810, 44128), (3152, 39340), (3934, 31520), (3940, 31472), (4496, 27580), (5516, 22480), (5620, 22064), (6304, 19670), (6895, 17984), (7868, 15760), (7880, 15736), (8992, 13790), (9835, 12608), (11032, 11240)]