680864520

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{810553}}^1$

素因数の和:810574

約数の個数: 64

約数和(自身を含む): 2334395520

約数和(自身を除く): 1653531000

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 810553, 1621106, 2431659, 3242212, 4052765, 4863318, 5673871, 6484424, 8105530, 9726636, 11347742, 12158295, 16211060, 17021613, 19453272, 22695484, 24316590, 28369355, 32422120, 34043226, 45390968, 48633180, 56738710, 68086452, 85108065, 97266360, 113477420, 136172904, 170216130, 226954840, 340432260, 680864520]

約数ペア:

[(1, 680864520), (2, 340432260), (3, 226954840), (4, 170216130), (5, 136172904), (6, 113477420), (7, 97266360), (8, 85108065), (10, 68086452), (12, 56738710), (14, 48633180), (15, 45390968), (20, 34043226), (21, 32422120), (24, 28369355), (28, 24316590), (30, 22695484), (35, 19453272), (40, 17021613), (42, 16211060), (56, 12158295), (60, 11347742), (70, 9726636), (84, 8105530), (105, 6484424), (120, 5673871), (140, 4863318), (168, 4052765), (210, 3242212), (280, 2431659), (420, 1621106), (840, 810553)]