71006520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{1979}}^1$

素因数の和:2029

約数の個数: 128

約数和(自身を含む): 239500800

約数和(自身を除く): 168494280

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 23, 24, 26, 30, 39, 40, 46, 52, 60, 65, 69, 78, 92, 104, 115, 120, 130, 138, 156, 184, 195, 230, 260, 276, 299, 312, 345, 390, 460, 520, 552, 598, 690, 780, 897, 920, 1196, 1380, 1495, 1560, 1794, 1979, 2392, 2760, 2990, 3588, 3958, 4485, 5937, 5980, 7176, 7916, 8970, 9895, 11874, 11960, 15832, 17940, 19790, 23748, 25727, 29685, 35880, 39580, 45517, 47496, 51454, 59370, 77181, 79160, 91034, 102908, 118740, 128635, 136551, 154362, 182068, 205816, 227585, 237480, 257270, 273102, 308724, 364136, 385905, 455170, 514540, 546204, 591721, 617448, 682755, 771810, 910340, 1029080, 1092408, 1183442, 1365510, 1543620, 1775163, 1820680, 2366884, 2731020, 2958605, 3087240, 3550326, 4733768, 5462040, 5917210, 7100652, 8875815, 11834420, 14201304, 17751630, 23668840, 35503260, 71006520]

約数ペア:

[(1, 71006520), (2, 35503260), (3, 23668840), (4, 17751630), (5, 14201304), (6, 11834420), (8, 8875815), (10, 7100652), (12, 5917210), (13, 5462040), (15, 4733768), (20, 3550326), (23, 3087240), (24, 2958605), (26, 2731020), (30, 2366884), (39, 1820680), (40, 1775163), (46, 1543620), (52, 1365510), (60, 1183442), (65, 1092408), (69, 1029080), (78, 910340), (92, 771810), (104, 682755), (115, 617448), (120, 591721), (130, 546204), (138, 514540), (156, 455170), (184, 385905), (195, 364136), (230, 308724), (260, 273102), (276, 257270), (299, 237480), (312, 227585), (345, 205816), (390, 182068), (460, 154362), (520, 136551), (552, 128635), (598, 118740), (690, 102908), (780, 91034), (897, 79160), (920, 77181), (1196, 59370), (1380, 51454), (1495, 47496), (1560, 45517), (1794, 39580), (1979, 35880), (2392, 29685), (2760, 25727), (2990, 23748), (3588, 19790), (3958, 17940), (4485, 15832), (5937, 11960), (5980, 11874), (7176, 9895), (7916, 8970)]