81966480

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{479}}^1$

素因数の和:549

約数の個数: 160

約数和(自身を含む): 274268160

約数和(自身を除く): 192301680

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 23, 24, 30, 31, 40, 46, 48, 60, 62, 69, 80, 92, 93, 115, 120, 124, 138, 155, 184, 186, 230, 240, 248, 276, 310, 345, 368, 372, 460, 465, 479, 496, 552, 620, 690, 713, 744, 920, 930, 958, 1104, 1240, 1380, 1426, 1437, 1488, 1840, 1860, 1916, 2139, 2395, 2480, 2760, 2852, 2874, 3565, 3720, 3832, 4278, 4790, 5520, 5704, 5748, 7130, 7185, 7440, 7664, 8556, 9580, 10695, 11017, 11408, 11496, 14260, 14370, 14849, 17112, 19160, 21390, 22034, 22992, 28520, 28740, 29698, 33051, 34224, 38320, 42780, 44068, 44547, 55085, 57040, 57480, 59396, 66102, 74245, 85560, 88136, 89094, 110170, 114960, 118792, 132204, 148490, 165255, 171120, 176272, 178188, 220340, 222735, 237584, 264408, 296980, 330510, 341527, 356376, 440680, 445470, 528816, 593960, 661020, 683054, 712752, 881360, 890940, 1024581, 1187920, 1322040, 1366108, 1707635, 1781880, 2049162, 2644080, 2732216, 3415270, 3563760, 4098324, 5122905, 5464432, 6830540, 8196648, 10245810, 13661080, 16393296, 20491620, 27322160, 40983240, 81966480]

約数ペア:

[(1, 81966480), (2, 40983240), (3, 27322160), (4, 20491620), (5, 16393296), (6, 13661080), (8, 10245810), (10, 8196648), (12, 6830540), (15, 5464432), (16, 5122905), (20, 4098324), (23, 3563760), (24, 3415270), (30, 2732216), (31, 2644080), (40, 2049162), (46, 1781880), (48, 1707635), (60, 1366108), (62, 1322040), (69, 1187920), (80, 1024581), (92, 890940), (93, 881360), (115, 712752), (120, 683054), (124, 661020), (138, 593960), (155, 528816), (184, 445470), (186, 440680), (230, 356376), (240, 341527), (248, 330510), (276, 296980), (310, 264408), (345, 237584), (368, 222735), (372, 220340), (460, 178188), (465, 176272), (479, 171120), (496, 165255), (552, 148490), (620, 132204), (690, 118792), (713, 114960), (744, 110170), (920, 89094), (930, 88136), (958, 85560), (1104, 74245), (1240, 66102), (1380, 59396), (1426, 57480), (1437, 57040), (1488, 55085), (1840, 44547), (1860, 44068), (1916, 42780), (2139, 38320), (2395, 34224), (2480, 33051), (2760, 29698), (2852, 28740), (2874, 28520), (3565, 22992), (3720, 22034), (3832, 21390), (4278, 19160), (4790, 17112), (5520, 14849), (5704, 14370), (5748, 14260), (7130, 11496), (7185, 11408), (7440, 11017), (7664, 10695), (8556, 9580)]