820304000

素因数分解:

$2^7\times 5^3\times {\mathrm{167}}^1\times {\mathrm{307}}^1$

素因数の和:503

約数の個数: 128

約数和(自身を含む): 2058376320

約数和(自身を除く): 1238072320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 125, 128, 160, 167, 200, 250, 307, 320, 334, 400, 500, 614, 640, 668, 800, 835, 1000, 1228, 1336, 1535, 1600, 1670, 2000, 2456, 2672, 3070, 3200, 3340, 4000, 4175, 4912, 5344, 6140, 6680, 7675, 8000, 8350, 9824, 10688, 12280, 13360, 15350, 16000, 16700, 19648, 20875, 21376, 24560, 26720, 30700, 33400, 38375, 39296, 41750, 49120, 51269, 53440, 61400, 66800, 76750, 83500, 98240, 102538, 106880, 122800, 133600, 153500, 167000, 196480, 205076, 245600, 256345, 267200, 307000, 334000, 410152, 491200, 512690, 534400, 614000, 668000, 820304, 982400, 1025380, 1228000, 1281725, 1336000, 1640608, 2050760, 2456000, 2563450, 2672000, 3281216, 4101520, 4912000, 5126900, 6408625, 6562432, 8203040, 10253800, 12817250, 16406080, 20507600, 25634500, 32812160, 41015200, 51269000, 82030400, 102538000, 164060800, 205076000, 410152000, 820304000]

約数ペア:

[(1, 820304000), (2, 410152000), (4, 205076000), (5, 164060800), (8, 102538000), (10, 82030400), (16, 51269000), (20, 41015200), (25, 32812160), (32, 25634500), (40, 20507600), (50, 16406080), (64, 12817250), (80, 10253800), (100, 8203040), (125, 6562432), (128, 6408625), (160, 5126900), (167, 4912000), (200, 4101520), (250, 3281216), (307, 2672000), (320, 2563450), (334, 2456000), (400, 2050760), (500, 1640608), (614, 1336000), (640, 1281725), (668, 1228000), (800, 1025380), (835, 982400), (1000, 820304), (1228, 668000), (1336, 614000), (1535, 534400), (1600, 512690), (1670, 491200), (2000, 410152), (2456, 334000), (2672, 307000), (3070, 267200), (3200, 256345), (3340, 245600), (4000, 205076), (4175, 196480), (4912, 167000), (5344, 153500), (6140, 133600), (6680, 122800), (7675, 106880), (8000, 102538), (8350, 98240), (9824, 83500), (10688, 76750), (12280, 66800), (13360, 61400), (15350, 53440), (16000, 51269), (16700, 49120), (19648, 41750), (20875, 39296), (21376, 38375), (24560, 33400), (26720, 30700)]