21389200

素因数分解:

$2^4\times 5^2\times 7^1\times {\mathrm{7639}}^1$

素因数の和:7664

約数の個数: 60

約数和(自身を含む): 58736320

約数和(自身を除く): 37347120

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, 7639, 15278, 30556, 38195, 53473, 61112, 76390, 106946, 122224, 152780, 190975, 213892, 267365, 305560, 381950, 427784, 534730, 611120, 763900, 855568, 1069460, 1336825, 1527800, 2138920, 2673650, 3055600, 4277840, 5347300, 10694600, 21389200]

約数ペア:

[(1, 21389200), (2, 10694600), (4, 5347300), (5, 4277840), (7, 3055600), (8, 2673650), (10, 2138920), (14, 1527800), (16, 1336825), (20, 1069460), (25, 855568), (28, 763900), (35, 611120), (40, 534730), (50, 427784), (56, 381950), (70, 305560), (80, 267365), (100, 213892), (112, 190975), (140, 152780), (175, 122224), (200, 106946), (280, 76390), (350, 61112), (400, 53473), (560, 38195), (700, 30556), (1400, 15278), (2800, 7639)]