66720640

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{281}}^1$

素因数の和:360

約数の個数: 128

約数和(自身を含む): 186390720

約数和(自身を除く): 119670080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 53, 56, 64, 70, 80, 106, 112, 128, 140, 160, 212, 224, 265, 280, 281, 320, 371, 424, 448, 530, 560, 562, 640, 742, 848, 896, 1060, 1120, 1124, 1405, 1484, 1696, 1855, 1967, 2120, 2240, 2248, 2810, 2968, 3392, 3710, 3934, 4240, 4480, 4496, 5620, 5936, 6784, 7420, 7868, 8480, 8992, 9835, 11240, 11872, 14840, 14893, 15736, 16960, 17984, 19670, 22480, 23744, 29680, 29786, 31472, 33920, 35968, 39340, 44960, 47488, 59360, 59572, 62944, 74465, 78680, 89920, 104251, 118720, 119144, 125888, 148930, 157360, 179840, 208502, 237440, 238288, 251776, 297860, 314720, 417004, 476576, 521255, 595720, 629440, 834008, 953152, 1042510, 1191440, 1258880, 1668016, 1906304, 2085020, 2382880, 3336032, 4170040, 4765760, 6672064, 8340080, 9531520, 13344128, 16680160, 33360320, 66720640]

約数ペア:

[(1, 66720640), (2, 33360320), (4, 16680160), (5, 13344128), (7, 9531520), (8, 8340080), (10, 6672064), (14, 4765760), (16, 4170040), (20, 3336032), (28, 2382880), (32, 2085020), (35, 1906304), (40, 1668016), (53, 1258880), (56, 1191440), (64, 1042510), (70, 953152), (80, 834008), (106, 629440), (112, 595720), (128, 521255), (140, 476576), (160, 417004), (212, 314720), (224, 297860), (265, 251776), (280, 238288), (281, 237440), (320, 208502), (371, 179840), (424, 157360), (448, 148930), (530, 125888), (560, 119144), (562, 118720), (640, 104251), (742, 89920), (848, 78680), (896, 74465), (1060, 62944), (1120, 59572), (1124, 59360), (1405, 47488), (1484, 44960), (1696, 39340), (1855, 35968), (1967, 33920), (2120, 31472), (2240, 29786), (2248, 29680), (2810, 23744), (2968, 22480), (3392, 19670), (3710, 17984), (3934, 16960), (4240, 15736), (4480, 14893), (4496, 14840), (5620, 11872), (5936, 11240), (6784, 9835), (7420, 8992), (7868, 8480)]