2000400

素因数分解:

$2^4\times 3^1\times 5^2\times {\mathrm{1667}}^1$

素因数の和:1688

約数の個数: 60

約数和(自身を含む): 6411792

約数和(自身を除く): 4411392

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 25, 30, 40, 48, 50, 60, 75, 80, 100, 120, 150, 200, 240, 300, 400, 600, 1200, 1667, 3334, 5001, 6668, 8335, 10002, 13336, 16670, 20004, 25005, 26672, 33340, 40008, 41675, 50010, 66680, 80016, 83350, 100020, 125025, 133360, 166700, 200040, 250050, 333400, 400080, 500100, 666800, 1000200, 2000400]

約数ペア:

[(1, 2000400), (2, 1000200), (3, 666800), (4, 500100), (5, 400080), (6, 333400), (8, 250050), (10, 200040), (12, 166700), (15, 133360), (16, 125025), (20, 100020), (24, 83350), (25, 80016), (30, 66680), (40, 50010), (48, 41675), (50, 40008), (60, 33340), (75, 26672), (80, 25005), (100, 20004), (120, 16670), (150, 13336), (200, 10002), (240, 8335), (300, 6668), (400, 5001), (600, 3334), (1200, 1667)]