42007980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{100019}}^1$

素因数の和:100038

約数の個数: 48

約数和(自身を含む): 134426880

約数和(自身を除く): 92418900

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, 100019, 200038, 300057, 400076, 500095, 600114, 700133, 1000190, 1200228, 1400266, 1500285, 2000380, 2100399, 2800532, 3000570, 3500665, 4200798, 6001140, 7001330, 8401596, 10501995, 14002660, 21003990, 42007980]

約数ペア:

[(1, 42007980), (2, 21003990), (3, 14002660), (4, 10501995), (5, 8401596), (6, 7001330), (7, 6001140), (10, 4200798), (12, 3500665), (14, 3000570), (15, 2800532), (20, 2100399), (21, 2000380), (28, 1500285), (30, 1400266), (35, 1200228), (42, 1000190), (60, 700133), (70, 600114), (84, 500095), (105, 400076), (140, 300057), (210, 200038), (420, 100019)]