2080506820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1889}}^1\times {\mathrm{7867}}^1$

素因数の和:9772

約数の個数: 48

約数和(自身を含む): 4996494720

約数和(自身を除く): 2915987900

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1889, 3778, 7556, 7867, 9445, 13223, 15734, 18890, 26446, 31468, 37780, 39335, 52892, 55069, 66115, 78670, 110138, 132230, 157340, 220276, 264460, 275345, 550690, 1101380, 14860763, 29721526, 59443052, 74303815, 104025341, 148607630, 208050682, 297215260, 416101364, 520126705, 1040253410, 2080506820]

約数ペア:

[(1, 2080506820), (2, 1040253410), (4, 520126705), (5, 416101364), (7, 297215260), (10, 208050682), (14, 148607630), (20, 104025341), (28, 74303815), (35, 59443052), (70, 29721526), (140, 14860763), (1889, 1101380), (3778, 550690), (7556, 275345), (7867, 264460), (9445, 220276), (13223, 157340), (15734, 132230), (18890, 110138), (26446, 78670), (31468, 66115), (37780, 55069), (39335, 52892)]