204631980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{487219}}^1$

素因数の和:487238

約数の個数: 48

約数和(自身を含む): 654823680

約数和(自身を除く): 450191700

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 487219, 974438, 1461657, 1948876, 2436095, 2923314, 3410533, 4872190, 5846628, 6821066, 7308285, 9744380, 10231599, 13642132, 14616570, 17052665, 20463198, 29233140, 34105330, 40926396, 51157995, 68210660, 102315990, 204631980]

約数ペア:

[(1, 204631980), (2, 102315990), (3, 68210660), (4, 51157995), (5, 40926396), (6, 34105330), (7, 29233140), (10, 20463198), (12, 17052665), (14, 14616570), (15, 13642132), (20, 10231599), (21, 9744380), (28, 7308285), (30, 6821066), (35, 5846628), (42, 4872190), (60, 3410533), (70, 2923314), (84, 2436095), (105, 1948876), (140, 1461657), (210, 974438), (420, 487219)]