2178400

素因数分解:

$2^5\times 5^2\times 7^1\times {\mathrm{389}}^1$

素因数の和:416

約数の個数: 72

約数和(自身を含む): 6093360

約数和(自身を除く): 3914960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 32, 35, 40, 50, 56, 70, 80, 100, 112, 140, 160, 175, 200, 224, 280, 350, 389, 400, 560, 700, 778, 800, 1120, 1400, 1556, 1945, 2723, 2800, 3112, 3890, 5446, 5600, 6224, 7780, 9725, 10892, 12448, 13615, 15560, 19450, 21784, 27230, 31120, 38900, 43568, 54460, 62240, 68075, 77800, 87136, 108920, 136150, 155600, 217840, 272300, 311200, 435680, 544600, 1089200, 2178400]

約数ペア:

[(1, 2178400), (2, 1089200), (4, 544600), (5, 435680), (7, 311200), (8, 272300), (10, 217840), (14, 155600), (16, 136150), (20, 108920), (25, 87136), (28, 77800), (32, 68075), (35, 62240), (40, 54460), (50, 43568), (56, 38900), (70, 31120), (80, 27230), (100, 21784), (112, 19450), (140, 15560), (160, 13615), (175, 12448), (200, 10892), (224, 9725), (280, 7780), (350, 6224), (389, 5600), (400, 5446), (560, 3890), (700, 3112), (778, 2800), (800, 2723), (1120, 1945), (1400, 1556)]