2487690

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{211}}^1$

素因数の和:355

約数の個数: 48

約数和(自身を含む): 6548256

約数和(自身を除く): 4060566

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 131, 211, 262, 393, 422, 633, 655, 786, 1055, 1179, 1266, 1310, 1899, 1965, 2110, 2358, 3165, 3798, 3930, 5895, 6330, 9495, 11790, 18990, 27641, 55282, 82923, 138205, 165846, 248769, 276410, 414615, 497538, 829230, 1243845, 2487690]

約数ペア:

[(1, 2487690), (2, 1243845), (3, 829230), (5, 497538), (6, 414615), (9, 276410), (10, 248769), (15, 165846), (18, 138205), (30, 82923), (45, 55282), (90, 27641), (131, 18990), (211, 11790), (262, 9495), (393, 6330), (422, 5895), (633, 3930), (655, 3798), (786, 3165), (1055, 2358), (1179, 2110), (1266, 1965), (1310, 1899)]