531705020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{345263}}^1$

素因数の和:345290

約数の個数: 48

約数和(自身を含む): 1392104448

約数和(自身を除く): 860399428

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, 345263, 690526, 1381052, 1726315, 2416841, 3452630, 3797893, 4833682, 6905260, 7595786, 9667364, 12084205, 15191572, 18989465, 24168410, 26585251, 37978930, 48336820, 53170502, 75957860, 106341004, 132926255, 265852510, 531705020]

約数ペア:

[(1, 531705020), (2, 265852510), (4, 132926255), (5, 106341004), (7, 75957860), (10, 53170502), (11, 48336820), (14, 37978930), (20, 26585251), (22, 24168410), (28, 18989465), (35, 15191572), (44, 12084205), (55, 9667364), (70, 7595786), (77, 6905260), (110, 4833682), (140, 3797893), (154, 3452630), (220, 2416841), (308, 1726315), (385, 1381052), (770, 690526), (1540, 345263)]