906821000

素因数分解:

$2^3\times 5^3\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{443}}^1$

素因数の和:576

約数の個数: 128

約数和(自身を含む): 2244153600

約数和(自身を除く): 1337332600

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 25, 40, 46, 50, 89, 92, 100, 115, 125, 178, 184, 200, 230, 250, 356, 443, 445, 460, 500, 575, 712, 886, 890, 920, 1000, 1150, 1772, 1780, 2047, 2215, 2225, 2300, 2875, 3544, 3560, 4094, 4430, 4450, 4600, 5750, 8188, 8860, 8900, 10189, 10235, 11075, 11125, 11500, 16376, 17720, 17800, 20378, 20470, 22150, 22250, 23000, 39427, 40756, 40940, 44300, 44500, 50945, 51175, 55375, 78854, 81512, 81880, 88600, 89000, 101890, 102350, 110750, 157708, 197135, 203780, 204700, 221500, 254725, 255875, 315416, 394270, 407560, 409400, 443000, 509450, 511750, 788540, 906821, 985675, 1018900, 1023500, 1273625, 1577080, 1813642, 1971350, 2037800, 2047000, 2547250, 3627284, 3942700, 4534105, 4928375, 5094500, 7254568, 7885400, 9068210, 9856750, 10189000, 18136420, 19713500, 22670525, 36272840, 39427000, 45341050, 90682100, 113352625, 181364200, 226705250, 453410500, 906821000]

約数ペア:

[(1, 906821000), (2, 453410500), (4, 226705250), (5, 181364200), (8, 113352625), (10, 90682100), (20, 45341050), (23, 39427000), (25, 36272840), (40, 22670525), (46, 19713500), (50, 18136420), (89, 10189000), (92, 9856750), (100, 9068210), (115, 7885400), (125, 7254568), (178, 5094500), (184, 4928375), (200, 4534105), (230, 3942700), (250, 3627284), (356, 2547250), (443, 2047000), (445, 2037800), (460, 1971350), (500, 1813642), (575, 1577080), (712, 1273625), (886, 1023500), (890, 1018900), (920, 985675), (1000, 906821), (1150, 788540), (1772, 511750), (1780, 509450), (2047, 443000), (2215, 409400), (2225, 407560), (2300, 394270), (2875, 315416), (3544, 255875), (3560, 254725), (4094, 221500), (4430, 204700), (4450, 203780), (4600, 197135), (5750, 157708), (8188, 110750), (8860, 102350), (8900, 101890), (10189, 89000), (10235, 88600), (11075, 81880), (11125, 81512), (11500, 78854), (16376, 55375), (17720, 51175), (17800, 50945), (20378, 44500), (20470, 44300), (22150, 40940), (22250, 40756), (23000, 39427)]