128134400

素因数分解:

$2^8\times 5^2\times {\mathrm{20021}}^1$

素因数の和:20047

約数の個数: 54

約数和(自身を含む): 317168502

約数和(自身を除く): 189034102

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 128, 160, 200, 256, 320, 400, 640, 800, 1280, 1600, 3200, 6400, 20021, 40042, 80084, 100105, 160168, 200210, 320336, 400420, 500525, 640672, 800840, 1001050, 1281344, 1601680, 2002100, 2562688, 3203360, 4004200, 5125376, 6406720, 8008400, 12813440, 16016800, 25626880, 32033600, 64067200, 128134400]

約数ペア:

[(1, 128134400), (2, 64067200), (4, 32033600), (5, 25626880), (8, 16016800), (10, 12813440), (16, 8008400), (20, 6406720), (25, 5125376), (32, 4004200), (40, 3203360), (50, 2562688), (64, 2002100), (80, 1601680), (100, 1281344), (128, 1001050), (160, 800840), (200, 640672), (256, 500525), (320, 400420), (400, 320336), (640, 200210), (800, 160168), (1280, 100105), (1600, 80084), (3200, 40042), (6400, 20021)]