2587164940

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{449}}^1\times {\mathrm{4723}}^1$

素因数の和:5242

約数の個数: 48

約数和(自身を含む): 5535583200

約数和(自身を除く): 2948418260

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 449, 610, 898, 1220, 1796, 2245, 4490, 4723, 8980, 9446, 18892, 23615, 27389, 47230, 54778, 94460, 109556, 136945, 273890, 288103, 547780, 576206, 1152412, 1440515, 2120627, 2881030, 4241254, 5762060, 8482508, 10603135, 21206270, 42412540, 129358247, 258716494, 517432988, 646791235, 1293582470, 2587164940]

約数ペア:

[(1, 2587164940), (2, 1293582470), (4, 646791235), (5, 517432988), (10, 258716494), (20, 129358247), (61, 42412540), (122, 21206270), (244, 10603135), (305, 8482508), (449, 5762060), (610, 4241254), (898, 2881030), (1220, 2120627), (1796, 1440515), (2245, 1152412), (4490, 576206), (4723, 547780), (8980, 288103), (9446, 273890), (18892, 136945), (23615, 109556), (27389, 94460), (47230, 54778)]