320521980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{251}}^1\times {\mathrm{21283}}^1$

素因数の和:21546

約数の個数: 48

約数和(自身を含む): 901079424

約数和(自身を除く): 580557444

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 251, 502, 753, 1004, 1255, 1506, 2510, 3012, 3765, 5020, 7530, 15060, 21283, 42566, 63849, 85132, 106415, 127698, 212830, 255396, 319245, 425660, 638490, 1276980, 5342033, 10684066, 16026099, 21368132, 26710165, 32052198, 53420330, 64104396, 80130495, 106840660, 160260990, 320521980]

約数ペア:

[(1, 320521980), (2, 160260990), (3, 106840660), (4, 80130495), (5, 64104396), (6, 53420330), (10, 32052198), (12, 26710165), (15, 21368132), (20, 16026099), (30, 10684066), (60, 5342033), (251, 1276980), (502, 638490), (753, 425660), (1004, 319245), (1255, 255396), (1506, 212830), (2510, 127698), (3012, 106415), (3765, 85132), (5020, 63849), (7530, 42566), (15060, 21283)]