1291237240

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{151}}^1\times {\mathrm{3011}}^1$

素因数の和:3244

約数の個数: 64

約数和(自身を含む): 2966699520

約数和(自身を除く): 1675462280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 151, 284, 302, 355, 568, 604, 710, 755, 1208, 1420, 1510, 2840, 3011, 3020, 6022, 6040, 10721, 12044, 15055, 21442, 24088, 30110, 42884, 53605, 60220, 85768, 107210, 120440, 213781, 214420, 427562, 428840, 454661, 855124, 909322, 1068905, 1710248, 1818644, 2137810, 2273305, 3637288, 4275620, 4546610, 8551240, 9093220, 18186440, 32280931, 64561862, 129123724, 161404655, 258247448, 322809310, 645618620, 1291237240]

約数ペア:

[(1, 1291237240), (2, 645618620), (4, 322809310), (5, 258247448), (8, 161404655), (10, 129123724), (20, 64561862), (40, 32280931), (71, 18186440), (142, 9093220), (151, 8551240), (284, 4546610), (302, 4275620), (355, 3637288), (568, 2273305), (604, 2137810), (710, 1818644), (755, 1710248), (1208, 1068905), (1420, 909322), (1510, 855124), (2840, 454661), (3011, 428840), (3020, 427562), (6022, 214420), (6040, 213781), (10721, 120440), (12044, 107210), (15055, 85768), (21442, 60220), (24088, 53605), (30110, 42884)]