19806080

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{4421}}^1$

素因数の和:4447

約数の個数: 64

約数和(自身を含む): 54125280

約数和(自身を除く): 34319200

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 224, 280, 320, 448, 560, 640, 896, 1120, 2240, 4421, 4480, 8842, 17684, 22105, 30947, 35368, 44210, 61894, 70736, 88420, 123788, 141472, 154735, 176840, 247576, 282944, 309470, 353680, 495152, 565888, 618940, 707360, 990304, 1237880, 1414720, 1980608, 2475760, 2829440, 3961216, 4951520, 9903040, 19806080]

約数ペア:

[(1, 19806080), (2, 9903040), (4, 4951520), (5, 3961216), (7, 2829440), (8, 2475760), (10, 1980608), (14, 1414720), (16, 1237880), (20, 990304), (28, 707360), (32, 618940), (35, 565888), (40, 495152), (56, 353680), (64, 309470), (70, 282944), (80, 247576), (112, 176840), (128, 154735), (140, 141472), (160, 123788), (224, 88420), (280, 70736), (320, 61894), (448, 44210), (560, 35368), (640, 30947), (896, 22105), (1120, 17684), (2240, 8842), (4421, 4480)]