81182080

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{18121}}^1$

素因数の和:18147

約数の個数: 64

約数和(自身を含む): 221813280

約数和(自身を除く): 140631200

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 224, 280, 320, 448, 560, 640, 896, 1120, 2240, 4480, 18121, 36242, 72484, 90605, 126847, 144968, 181210, 253694, 289936, 362420, 507388, 579872, 634235, 724840, 1014776, 1159744, 1268470, 1449680, 2029552, 2319488, 2536940, 2899360, 4059104, 5073880, 5798720, 8118208, 10147760, 11597440, 16236416, 20295520, 40591040, 81182080]

約数ペア:

[(1, 81182080), (2, 40591040), (4, 20295520), (5, 16236416), (7, 11597440), (8, 10147760), (10, 8118208), (14, 5798720), (16, 5073880), (20, 4059104), (28, 2899360), (32, 2536940), (35, 2319488), (40, 2029552), (56, 1449680), (64, 1268470), (70, 1159744), (80, 1014776), (112, 724840), (128, 634235), (140, 579872), (160, 507388), (224, 362420), (280, 289936), (320, 253694), (448, 181210), (560, 144968), (640, 126847), (896, 90605), (1120, 72484), (2240, 36242), (4480, 18121)]