77231440

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{157}}^1$

素因数の和:237

約数の個数: 160

約数和(自身を含む): 217236096

約数和(自身を除く): 140004656

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 16, 20, 22, 26, 40, 43, 44, 52, 55, 65, 80, 86, 88, 104, 110, 130, 143, 157, 172, 176, 208, 215, 220, 260, 286, 314, 344, 430, 440, 473, 520, 559, 572, 628, 688, 715, 785, 860, 880, 946, 1040, 1118, 1144, 1256, 1430, 1570, 1720, 1727, 1892, 2041, 2236, 2288, 2365, 2512, 2795, 2860, 3140, 3440, 3454, 3784, 4082, 4472, 4730, 5590, 5720, 6149, 6280, 6751, 6908, 7568, 8164, 8635, 8944, 9460, 10205, 11180, 11440, 12298, 12560, 13502, 13816, 16328, 17270, 18920, 20410, 22360, 22451, 24596, 27004, 27632, 30745, 32656, 33755, 34540, 37840, 40820, 44720, 44902, 49192, 54008, 61490, 67510, 69080, 74261, 81640, 87763, 89804, 98384, 108016, 112255, 122980, 135020, 138160, 148522, 163280, 175526, 179608, 224510, 245960, 270040, 297044, 351052, 359216, 371305, 438815, 449020, 491920, 540080, 594088, 702104, 742610, 877630, 898040, 965393, 1188176, 1404208, 1485220, 1755260, 1796080, 1930786, 2970440, 3510520, 3861572, 4826965, 5940880, 7021040, 7723144, 9653930, 15446288, 19307860, 38615720, 77231440]

約数ペア:

[(1, 77231440), (2, 38615720), (4, 19307860), (5, 15446288), (8, 9653930), (10, 7723144), (11, 7021040), (13, 5940880), (16, 4826965), (20, 3861572), (22, 3510520), (26, 2970440), (40, 1930786), (43, 1796080), (44, 1755260), (52, 1485220), (55, 1404208), (65, 1188176), (80, 965393), (86, 898040), (88, 877630), (104, 742610), (110, 702104), (130, 594088), (143, 540080), (157, 491920), (172, 449020), (176, 438815), (208, 371305), (215, 359216), (220, 351052), (260, 297044), (286, 270040), (314, 245960), (344, 224510), (430, 179608), (440, 175526), (473, 163280), (520, 148522), (559, 138160), (572, 135020), (628, 122980), (688, 112255), (715, 108016), (785, 98384), (860, 89804), (880, 87763), (946, 81640), (1040, 74261), (1118, 69080), (1144, 67510), (1256, 61490), (1430, 54008), (1570, 49192), (1720, 44902), (1727, 44720), (1892, 40820), (2041, 37840), (2236, 34540), (2288, 33755), (2365, 32656), (2512, 30745), (2795, 27632), (2860, 27004), (3140, 24596), (3440, 22451), (3454, 22360), (3784, 20410), (4082, 18920), (4472, 17270), (4730, 16328), (5590, 13816), (5720, 13502), (6149, 12560), (6280, 12298), (6751, 11440), (6908, 11180), (7568, 10205), (8164, 9460), (8635, 8944)]