20562640

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{503}}^1$

素因数の和:596

約数の個数: 80

約数和(自身を含む): 55496448

約数和(自身を除く): 34933808

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 73, 80, 112, 140, 146, 280, 292, 365, 503, 511, 560, 584, 730, 1006, 1022, 1168, 1460, 2012, 2044, 2515, 2555, 2920, 3521, 4024, 4088, 5030, 5110, 5840, 7042, 8048, 8176, 10060, 10220, 14084, 17605, 20120, 20440, 28168, 35210, 36719, 40240, 40880, 56336, 70420, 73438, 140840, 146876, 183595, 257033, 281680, 293752, 367190, 514066, 587504, 734380, 1028132, 1285165, 1468760, 2056264, 2570330, 2937520, 4112528, 5140660, 10281320, 20562640]

約数ペア:

[(1, 20562640), (2, 10281320), (4, 5140660), (5, 4112528), (7, 2937520), (8, 2570330), (10, 2056264), (14, 1468760), (16, 1285165), (20, 1028132), (28, 734380), (35, 587504), (40, 514066), (56, 367190), (70, 293752), (73, 281680), (80, 257033), (112, 183595), (140, 146876), (146, 140840), (280, 73438), (292, 70420), (365, 56336), (503, 40880), (511, 40240), (560, 36719), (584, 35210), (730, 28168), (1006, 20440), (1022, 20120), (1168, 17605), (1460, 14084), (2012, 10220), (2044, 10060), (2515, 8176), (2555, 8048), (2920, 7042), (3521, 5840), (4024, 5110), (4088, 5030)]