131026320

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{181981}}^1$

素因数の和:182000

約数の個数: 60

約数和(自身を含む): 440032476

約数和(自身を除く): 309006156

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720, 181981, 363962, 545943, 727924, 909905, 1091886, 1455848, 1637829, 1819810, 2183772, 2729715, 2911696, 3275658, 3639620, 4367544, 5459430, 6551316, 7279240, 8189145, 8735088, 10918860, 13102632, 14558480, 16378290, 21837720, 26205264, 32756580, 43675440, 65513160, 131026320]

約数ペア:

[(1, 131026320), (2, 65513160), (3, 43675440), (4, 32756580), (5, 26205264), (6, 21837720), (8, 16378290), (9, 14558480), (10, 13102632), (12, 10918860), (15, 8735088), (16, 8189145), (18, 7279240), (20, 6551316), (24, 5459430), (30, 4367544), (36, 3639620), (40, 3275658), (45, 2911696), (48, 2729715), (60, 2183772), (72, 1819810), (80, 1637829), (90, 1455848), (120, 1091886), (144, 909905), (180, 727924), (240, 545943), (360, 363962), (720, 181981)]