257548460

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{541}}^1\times {\mathrm{1831}}^1$

素因数の和:2394

約数の個数: 48

約数和(自身を含む): 583851072

約数和(自身を除く): 326302612

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 541, 1082, 1831, 2164, 2705, 3662, 5410, 7033, 7324, 9155, 10820, 14066, 18310, 23803, 28132, 35165, 36620, 47606, 70330, 95212, 119015, 140660, 238030, 476060, 990571, 1981142, 3962284, 4952855, 9905710, 12877423, 19811420, 25754846, 51509692, 64387115, 128774230, 257548460]

約数ペア:

[(1, 257548460), (2, 128774230), (4, 64387115), (5, 51509692), (10, 25754846), (13, 19811420), (20, 12877423), (26, 9905710), (52, 4952855), (65, 3962284), (130, 1981142), (260, 990571), (541, 476060), (1082, 238030), (1831, 140660), (2164, 119015), (2705, 95212), (3662, 70330), (5410, 47606), (7033, 36620), (7324, 35165), (9155, 28132), (10820, 23803), (14066, 18310)]