15820420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{10273}}^1$

素因数の和:10300

約数の個数: 48

約数和(自身を含む): 41424768

約数和(自身を除く): 25604348

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 10273, 20546, 41092, 51365, 71911, 102730, 113003, 143822, 205460, 226006, 287644, 359555, 452012, 565015, 719110, 791021, 1130030, 1438220, 1582042, 2260060, 3164084, 3955105, 7910210, 15820420]

約数ペア:

[(1, 15820420), (2, 7910210), (4, 3955105), (5, 3164084), (7, 2260060), (10, 1582042), (11, 1438220), (14, 1130030), (20, 791021), (22, 719110), (28, 565015), (35, 452012), (44, 359555), (55, 287644), (70, 226006), (77, 205460), (110, 143822), (140, 113003), (154, 102730), (220, 71911), (308, 51365), (385, 41092), (770, 20546), (1540, 10273)]