1255486540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{815251}}^1$

素因数の和:815278

約数の個数: 48

約数和(自身を含む): 3287096064

約数和(自身を除く): 2031609524

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, 815251, 1630502, 3261004, 4076255, 5706757, 8152510, 8967761, 11413514, 16305020, 17935522, 22827028, 28533785, 35871044, 44838805, 57067570, 62774327, 89677610, 114135140, 125548654, 179355220, 251097308, 313871635, 627743270, 1255486540]

約数ペア:

[(1, 1255486540), (2, 627743270), (4, 313871635), (5, 251097308), (7, 179355220), (10, 125548654), (11, 114135140), (14, 89677610), (20, 62774327), (22, 57067570), (28, 44838805), (35, 35871044), (44, 28533785), (55, 22827028), (70, 17935522), (77, 16305020), (110, 11413514), (140, 8967761), (154, 8152510), (220, 5706757), (308, 4076255), (385, 3261004), (770, 1630502), (1540, 815251)]