161681280

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{107}}^1\times {\mathrm{787}}^1$

素因数の和:916

約数の個数: 128

約数和(自身を含む): 520836480

約数和(自身を除く): 359155200

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 107, 120, 128, 160, 192, 214, 240, 320, 321, 384, 428, 480, 535, 640, 642, 787, 856, 960, 1070, 1284, 1574, 1605, 1712, 1920, 2140, 2361, 2568, 3148, 3210, 3424, 3935, 4280, 4722, 5136, 6296, 6420, 6848, 7870, 8560, 9444, 10272, 11805, 12592, 12840, 13696, 15740, 17120, 18888, 20544, 23610, 25184, 25680, 31480, 34240, 37776, 41088, 47220, 50368, 51360, 62960, 68480, 75552, 84209, 94440, 100736, 102720, 125920, 151104, 168418, 188880, 205440, 251840, 252627, 302208, 336836, 377760, 421045, 503680, 505254, 673672, 755520, 842090, 1010508, 1263135, 1347344, 1511040, 1684180, 2021016, 2526270, 2694688, 3368360, 4042032, 5052540, 5389376, 6736720, 8084064, 10105080, 10778752, 13473440, 16168128, 20210160, 26946880, 32336256, 40420320, 53893760, 80840640, 161681280]

約数ペア:

[(1, 161681280), (2, 80840640), (3, 53893760), (4, 40420320), (5, 32336256), (6, 26946880), (8, 20210160), (10, 16168128), (12, 13473440), (15, 10778752), (16, 10105080), (20, 8084064), (24, 6736720), (30, 5389376), (32, 5052540), (40, 4042032), (48, 3368360), (60, 2694688), (64, 2526270), (80, 2021016), (96, 1684180), (107, 1511040), (120, 1347344), (128, 1263135), (160, 1010508), (192, 842090), (214, 755520), (240, 673672), (320, 505254), (321, 503680), (384, 421045), (428, 377760), (480, 336836), (535, 302208), (640, 252627), (642, 251840), (787, 205440), (856, 188880), (960, 168418), (1070, 151104), (1284, 125920), (1574, 102720), (1605, 100736), (1712, 94440), (1920, 84209), (2140, 75552), (2361, 68480), (2568, 62960), (3148, 51360), (3210, 50368), (3424, 47220), (3935, 41088), (4280, 37776), (4722, 34240), (5136, 31480), (6296, 25680), (6420, 25184), (6848, 23610), (7870, 20544), (8560, 18888), (9444, 17120), (10272, 15740), (11805, 13696), (12592, 12840)]