2123142920

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{491}}^1\times {\mathrm{6359}}^1$

素因数の和:6878

約数の個数: 64

約数和(自身を含む): 5069174400

約数和(自身を除く): 2946031480

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 491, 680, 982, 1964, 2455, 3928, 4910, 6359, 8347, 9820, 12718, 16694, 19640, 25436, 31795, 33388, 41735, 50872, 63590, 66776, 83470, 108103, 127180, 166940, 216206, 254360, 333880, 432412, 540515, 864824, 1081030, 2162060, 3122269, 4324120, 6244538, 12489076, 15611345, 24978152, 31222690, 53078573, 62445380, 106157146, 124890760, 212314292, 265392865, 424628584, 530785730, 1061571460, 2123142920]

約数ペア:

[(1, 2123142920), (2, 1061571460), (4, 530785730), (5, 424628584), (8, 265392865), (10, 212314292), (17, 124890760), (20, 106157146), (34, 62445380), (40, 53078573), (68, 31222690), (85, 24978152), (136, 15611345), (170, 12489076), (340, 6244538), (491, 4324120), (680, 3122269), (982, 2162060), (1964, 1081030), (2455, 864824), (3928, 540515), (4910, 432412), (6359, 333880), (8347, 254360), (9820, 216206), (12718, 166940), (16694, 127180), (19640, 108103), (25436, 83470), (31795, 66776), (33388, 63590), (41735, 50872)]