20400

素因数分解:

$2^4\times 3^1\times 5^2\times {\mathrm{17}}^1$

素因数の和:38

約数の個数: 60

約数和(自身を含む): 69192

約数和(自身を除く): 48792

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 20, 24, 25, 30, 34, 40, 48, 50, 51, 60, 68, 75, 80, 85, 100, 102, 120, 136, 150, 170, 200, 204, 240, 255, 272, 300, 340, 400, 408, 425, 510, 600, 680, 816, 850, 1020, 1200, 1275, 1360, 1700, 2040, 2550, 3400, 4080, 5100, 6800, 10200, 20400]

約数ペア:

[(1, 20400), (2, 10200), (3, 6800), (4, 5100), (5, 4080), (6, 3400), (8, 2550), (10, 2040), (12, 1700), (15, 1360), (16, 1275), (17, 1200), (20, 1020), (24, 850), (25, 816), (30, 680), (34, 600), (40, 510), (48, 425), (50, 408), (51, 400), (60, 340), (68, 300), (75, 272), (80, 255), (85, 240), (100, 204), (102, 200), (120, 170), (136, 150)]