454400

素因数分解:

$2^8\times 5^2\times {\mathrm{71}}^1$

素因数の和:97

約数の個数: 54

約数和(自身を含む): 1140552

約数和(自身を除く): 686152

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 71, 80, 100, 128, 142, 160, 200, 256, 284, 320, 355, 400, 568, 640, 710, 800, 1136, 1280, 1420, 1600, 1775, 2272, 2840, 3200, 3550, 4544, 5680, 6400, 7100, 9088, 11360, 14200, 18176, 22720, 28400, 45440, 56800, 90880, 113600, 227200, 454400]

約数ペア:

[(1, 454400), (2, 227200), (4, 113600), (5, 90880), (8, 56800), (10, 45440), (16, 28400), (20, 22720), (25, 18176), (32, 14200), (40, 11360), (50, 9088), (64, 7100), (71, 6400), (80, 5680), (100, 4544), (128, 3550), (142, 3200), (160, 2840), (200, 2272), (256, 1775), (284, 1600), (320, 1420), (355, 1280), (400, 1136), (568, 800), (640, 710)]