20812400

素因数分解:

$2^4\times 5^2\times 7^1\times {\mathrm{7433}}^1$

素因数の和:7458

約数の個数: 60

約数和(自身を含む): 57152592

約数和(自身を除く): 36340192

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 35, 40, 50, 56, 70, 80, 100, 112, 140, 175, 200, 280, 350, 400, 560, 700, 1400, 2800, 7433, 14866, 29732, 37165, 52031, 59464, 74330, 104062, 118928, 148660, 185825, 208124, 260155, 297320, 371650, 416248, 520310, 594640, 743300, 832496, 1040620, 1300775, 1486600, 2081240, 2601550, 2973200, 4162480, 5203100, 10406200, 20812400]

約数ペア:

[(1, 20812400), (2, 10406200), (4, 5203100), (5, 4162480), (7, 2973200), (8, 2601550), (10, 2081240), (14, 1486600), (16, 1300775), (20, 1040620), (25, 832496), (28, 743300), (35, 594640), (40, 520310), (50, 416248), (56, 371650), (70, 297320), (80, 260155), (100, 208124), (112, 185825), (140, 148660), (175, 118928), (200, 104062), (280, 74330), (350, 59464), (400, 52031), (560, 37165), (700, 29732), (1400, 14866), (2800, 7433)]