31940480

素因数分解:

$2^7\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{349}}^1$

素因数の和:392

約数の個数: 128

約数和(自身を含む): 89964000

約数和(自身を除く): 58023520

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 16, 20, 22, 26, 32, 40, 44, 52, 55, 64, 65, 80, 88, 104, 110, 128, 130, 143, 160, 176, 208, 220, 260, 286, 320, 349, 352, 416, 440, 520, 572, 640, 698, 704, 715, 832, 880, 1040, 1144, 1396, 1408, 1430, 1664, 1745, 1760, 2080, 2288, 2792, 2860, 3490, 3520, 3839, 4160, 4537, 4576, 5584, 5720, 6980, 7040, 7678, 8320, 9074, 9152, 11168, 11440, 13960, 15356, 18148, 18304, 19195, 22336, 22685, 22880, 27920, 30712, 36296, 38390, 44672, 45370, 45760, 49907, 55840, 61424, 72592, 76780, 90740, 91520, 99814, 111680, 122848, 145184, 153560, 181480, 199628, 223360, 245696, 249535, 290368, 307120, 362960, 399256, 491392, 499070, 580736, 614240, 725920, 798512, 998140, 1228480, 1451840, 1597024, 1996280, 2456960, 2903680, 3194048, 3992560, 6388096, 7985120, 15970240, 31940480]

約数ペア:

[(1, 31940480), (2, 15970240), (4, 7985120), (5, 6388096), (8, 3992560), (10, 3194048), (11, 2903680), (13, 2456960), (16, 1996280), (20, 1597024), (22, 1451840), (26, 1228480), (32, 998140), (40, 798512), (44, 725920), (52, 614240), (55, 580736), (64, 499070), (65, 491392), (80, 399256), (88, 362960), (104, 307120), (110, 290368), (128, 249535), (130, 245696), (143, 223360), (160, 199628), (176, 181480), (208, 153560), (220, 145184), (260, 122848), (286, 111680), (320, 99814), (349, 91520), (352, 90740), (416, 76780), (440, 72592), (520, 61424), (572, 55840), (640, 49907), (698, 45760), (704, 45370), (715, 44672), (832, 38390), (880, 36296), (1040, 30712), (1144, 27920), (1396, 22880), (1408, 22685), (1430, 22336), (1664, 19195), (1745, 18304), (1760, 18148), (2080, 15356), (2288, 13960), (2792, 11440), (2860, 11168), (3490, 9152), (3520, 9074), (3839, 8320), (4160, 7678), (4537, 7040), (4576, 6980), (5584, 5720)]