81564720

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{577}}^1$

素因数の和:643

約数の個数: 160

約数和(自身を含む): 275220480

約数和(自身を除く): 193655760

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 19, 20, 24, 30, 31, 38, 40, 48, 57, 60, 62, 76, 80, 93, 95, 114, 120, 124, 152, 155, 186, 190, 228, 240, 248, 285, 304, 310, 372, 380, 456, 465, 496, 570, 577, 589, 620, 744, 760, 912, 930, 1140, 1154, 1178, 1240, 1488, 1520, 1731, 1767, 1860, 2280, 2308, 2356, 2480, 2885, 2945, 3462, 3534, 3720, 4560, 4616, 4712, 5770, 5890, 6924, 7068, 7440, 8655, 8835, 9232, 9424, 10963, 11540, 11780, 13848, 14136, 17310, 17670, 17887, 21926, 23080, 23560, 27696, 28272, 32889, 34620, 35340, 35774, 43852, 46160, 47120, 53661, 54815, 65778, 69240, 70680, 71548, 87704, 89435, 107322, 109630, 131556, 138480, 141360, 143096, 164445, 175408, 178870, 214644, 219260, 263112, 268305, 286192, 328890, 339853, 357740, 429288, 438520, 526224, 536610, 657780, 679706, 715480, 858576, 877040, 1019559, 1073220, 1315560, 1359412, 1430960, 1699265, 2039118, 2146440, 2631120, 2718824, 3398530, 4078236, 4292880, 5097795, 5437648, 6797060, 8156472, 10195590, 13594120, 16312944, 20391180, 27188240, 40782360, 81564720]

約数ペア:

[(1, 81564720), (2, 40782360), (3, 27188240), (4, 20391180), (5, 16312944), (6, 13594120), (8, 10195590), (10, 8156472), (12, 6797060), (15, 5437648), (16, 5097795), (19, 4292880), (20, 4078236), (24, 3398530), (30, 2718824), (31, 2631120), (38, 2146440), (40, 2039118), (48, 1699265), (57, 1430960), (60, 1359412), (62, 1315560), (76, 1073220), (80, 1019559), (93, 877040), (95, 858576), (114, 715480), (120, 679706), (124, 657780), (152, 536610), (155, 526224), (186, 438520), (190, 429288), (228, 357740), (240, 339853), (248, 328890), (285, 286192), (304, 268305), (310, 263112), (372, 219260), (380, 214644), (456, 178870), (465, 175408), (496, 164445), (570, 143096), (577, 141360), (589, 138480), (620, 131556), (744, 109630), (760, 107322), (912, 89435), (930, 87704), (1140, 71548), (1154, 70680), (1178, 69240), (1240, 65778), (1488, 54815), (1520, 53661), (1731, 47120), (1767, 46160), (1860, 43852), (2280, 35774), (2308, 35340), (2356, 34620), (2480, 32889), (2885, 28272), (2945, 27696), (3462, 23560), (3534, 23080), (3720, 21926), (4560, 17887), (4616, 17670), (4712, 17310), (5770, 14136), (5890, 13848), (6924, 11780), (7068, 11540), (7440, 10963), (8655, 9424), (8835, 9232)]