80000400

素因数分解:

$2^4\times 3^1\times 5^2\times {\mathrm{163}}^1\times {\mathrm{409}}^1$

素因数の和:593

約数の個数: 120

約数和(自身を含む): 258470560

約数和(自身を除く): 178470160

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, 163, 200, 240, 300, 326, 400, 409, 489, 600, 652, 815, 818, 978, 1200, 1227, 1304, 1630, 1636, 1956, 2045, 2445, 2454, 2608, 3260, 3272, 3912, 4075, 4090, 4890, 4908, 6135, 6520, 6544, 7824, 8150, 8180, 9780, 9816, 10225, 12225, 12270, 13040, 16300, 16360, 19560, 19632, 20450, 24450, 24540, 30675, 32600, 32720, 39120, 40900, 48900, 49080, 61350, 65200, 66667, 81800, 97800, 98160, 122700, 133334, 163600, 195600, 200001, 245400, 266668, 333335, 400002, 490800, 533336, 666670, 800004, 1000005, 1066672, 1333340, 1600008, 1666675, 2000010, 2666680, 3200016, 3333350, 4000020, 5000025, 5333360, 6666700, 8000040, 10000050, 13333400, 16000080, 20000100, 26666800, 40000200, 80000400]

約数ペア:

[(1, 80000400), (2, 40000200), (3, 26666800), (4, 20000100), (5, 16000080), (6, 13333400), (8, 10000050), (10, 8000040), (12, 6666700), (15, 5333360), (16, 5000025), (20, 4000020), (24, 3333350), (25, 3200016), (30, 2666680), (40, 2000010), (48, 1666675), (50, 1600008), (60, 1333340), (75, 1066672), (80, 1000005), (100, 800004), (120, 666670), (150, 533336), (163, 490800), (200, 400002), (240, 333335), (300, 266668), (326, 245400), (400, 200001), (409, 195600), (489, 163600), (600, 133334), (652, 122700), (815, 98160), (818, 97800), (978, 81800), (1200, 66667), (1227, 65200), (1304, 61350), (1630, 49080), (1636, 48900), (1956, 40900), (2045, 39120), (2445, 32720), (2454, 32600), (2608, 30675), (3260, 24540), (3272, 24450), (3912, 20450), (4075, 19632), (4090, 19560), (4890, 16360), (4908, 16300), (6135, 13040), (6520, 12270), (6544, 12225), (7824, 10225), (8150, 9816), (8180, 9780)]