129969540

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{499}}^1\times {\mathrm{1447}}^1$

素因数の和:1961

約数の個数: 72

約数和(自身を含む): 395304000

約数和(自身を除く): 265334460

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 499, 998, 1447, 1497, 1996, 2495, 2894, 2994, 4341, 4491, 4990, 5788, 5988, 7235, 7485, 8682, 8982, 9980, 13023, 14470, 14970, 17364, 17964, 21705, 22455, 26046, 28940, 29940, 43410, 44910, 52092, 65115, 86820, 89820, 130230, 260460, 722053, 1444106, 2166159, 2888212, 3610265, 4332318, 6498477, 7220530, 8664636, 10830795, 12996954, 14441060, 21661590, 25993908, 32492385, 43323180, 64984770, 129969540]

約数ペア:

[(1, 129969540), (2, 64984770), (3, 43323180), (4, 32492385), (5, 25993908), (6, 21661590), (9, 14441060), (10, 12996954), (12, 10830795), (15, 8664636), (18, 7220530), (20, 6498477), (30, 4332318), (36, 3610265), (45, 2888212), (60, 2166159), (90, 1444106), (180, 722053), (499, 260460), (998, 130230), (1447, 89820), (1497, 86820), (1996, 65115), (2495, 52092), (2894, 44910), (2994, 43410), (4341, 29940), (4491, 28940), (4990, 26046), (5788, 22455), (5988, 21705), (7235, 17964), (7485, 17364), (8682, 14970), (8982, 14470), (9980, 13023)]