20720370

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{1697}}^1$

素因数の和:1755

約数の個数: 64

約数和(自身を含む): 55748736

約数和(自身を除く): 35028366

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 22, 30, 33, 37, 55, 66, 74, 110, 111, 165, 185, 222, 330, 370, 407, 555, 814, 1110, 1221, 1697, 2035, 2442, 3394, 4070, 5091, 6105, 8485, 10182, 12210, 16970, 18667, 25455, 37334, 50910, 56001, 62789, 93335, 112002, 125578, 186670, 188367, 280005, 313945, 376734, 560010, 627890, 690679, 941835, 1381358, 1883670, 2072037, 3453395, 4144074, 6906790, 10360185, 20720370]

約数ペア:

[(1, 20720370), (2, 10360185), (3, 6906790), (5, 4144074), (6, 3453395), (10, 2072037), (11, 1883670), (15, 1381358), (22, 941835), (30, 690679), (33, 627890), (37, 560010), (55, 376734), (66, 313945), (74, 280005), (110, 188367), (111, 186670), (165, 125578), (185, 112002), (222, 93335), (330, 62789), (370, 56001), (407, 50910), (555, 37334), (814, 25455), (1110, 18667), (1221, 16970), (1697, 12210), (2035, 10182), (2442, 8485), (3394, 6105), (4070, 5091)]