402400

素因数分解:

$2^5\times 5^2\times {\mathrm{503}}^1$

素因数の和:523

約数の個数: 36

約数和(自身を含む): 984312

約数和(自身を除く): 581912

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 160, 200, 400, 503, 800, 1006, 2012, 2515, 4024, 5030, 8048, 10060, 12575, 16096, 20120, 25150, 40240, 50300, 80480, 100600, 201200, 402400]

約数ペア:

[(1, 402400), (2, 201200), (4, 100600), (5, 80480), (8, 50300), (10, 40240), (16, 25150), (20, 20120), (25, 16096), (32, 12575), (40, 10060), (50, 8048), (80, 5030), (100, 4024), (160, 2515), (200, 2012), (400, 1006), (503, 800)]