1520781340

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{293}}^1\times {\mathrm{19963}}^1$

素因数の和:20278

約数の個数: 48

約数和(自身を含む): 3451216608

約数和(自身を除く): 1930435268

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 293, 586, 1172, 1465, 2930, 3809, 5860, 7618, 15236, 19045, 19963, 38090, 39926, 76180, 79852, 99815, 199630, 259519, 399260, 519038, 1038076, 1297595, 2595190, 5190380, 5849159, 11698318, 23396636, 29245795, 58491590, 76039067, 116983180, 152078134, 304156268, 380195335, 760390670, 1520781340]

約数ペア:

[(1, 1520781340), (2, 760390670), (4, 380195335), (5, 304156268), (10, 152078134), (13, 116983180), (20, 76039067), (26, 58491590), (52, 29245795), (65, 23396636), (130, 11698318), (260, 5849159), (293, 5190380), (586, 2595190), (1172, 1297595), (1465, 1038076), (2930, 519038), (3809, 399260), (5860, 259519), (7618, 199630), (15236, 99815), (19045, 79852), (19963, 76180), (38090, 39926)]