76821720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{107}}^1\times {\mathrm{193}}^1$

素因数の和:345

約数の個数: 128

約数和(自身を含む): 241367040

約数和(自身を除く): 164545320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 31, 40, 60, 62, 93, 107, 120, 124, 155, 186, 193, 214, 248, 310, 321, 372, 386, 428, 465, 535, 579, 620, 642, 744, 772, 856, 930, 965, 1070, 1158, 1240, 1284, 1544, 1605, 1860, 1930, 2140, 2316, 2568, 2895, 3210, 3317, 3720, 3860, 4280, 4632, 5790, 5983, 6420, 6634, 7720, 9951, 11580, 11966, 12840, 13268, 16585, 17949, 19902, 20651, 23160, 23932, 26536, 29915, 33170, 35898, 39804, 41302, 47864, 49755, 59830, 61953, 66340, 71796, 79608, 82604, 89745, 99510, 103255, 119660, 123906, 132680, 143592, 165208, 179490, 199020, 206510, 239320, 247812, 309765, 358980, 398040, 413020, 495624, 619530, 640181, 717960, 826040, 1239060, 1280362, 1920543, 2478120, 2560724, 3200905, 3841086, 5121448, 6401810, 7682172, 9602715, 12803620, 15364344, 19205430, 25607240, 38410860, 76821720]

約数ペア:

[(1, 76821720), (2, 38410860), (3, 25607240), (4, 19205430), (5, 15364344), (6, 12803620), (8, 9602715), (10, 7682172), (12, 6401810), (15, 5121448), (20, 3841086), (24, 3200905), (30, 2560724), (31, 2478120), (40, 1920543), (60, 1280362), (62, 1239060), (93, 826040), (107, 717960), (120, 640181), (124, 619530), (155, 495624), (186, 413020), (193, 398040), (214, 358980), (248, 309765), (310, 247812), (321, 239320), (372, 206510), (386, 199020), (428, 179490), (465, 165208), (535, 143592), (579, 132680), (620, 123906), (642, 119660), (744, 103255), (772, 99510), (856, 89745), (930, 82604), (965, 79608), (1070, 71796), (1158, 66340), (1240, 61953), (1284, 59830), (1544, 49755), (1605, 47864), (1860, 41302), (1930, 39804), (2140, 35898), (2316, 33170), (2568, 29915), (2895, 26536), (3210, 23932), (3317, 23160), (3720, 20651), (3860, 19902), (4280, 17949), (4632, 16585), (5790, 13268), (5983, 12840), (6420, 11966), (6634, 11580), (7720, 9951)]