161891280

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{59}}^1\times {\mathrm{103}}^1$

素因数の和:218

約数の個数: 240

約数和(自身を含む): 573356160

約数和(自身を除く): 411464880

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 37, 40, 45, 48, 59, 60, 72, 74, 80, 90, 103, 111, 118, 120, 144, 148, 177, 180, 185, 206, 222, 236, 240, 295, 296, 309, 333, 354, 360, 370, 412, 444, 472, 515, 531, 555, 590, 592, 618, 666, 708, 720, 740, 824, 885, 888, 927, 944, 1030, 1062, 1110, 1180, 1236, 1332, 1416, 1480, 1545, 1648, 1665, 1770, 1776, 1854, 2060, 2124, 2183, 2220, 2360, 2472, 2655, 2664, 2832, 2960, 3090, 3330, 3540, 3708, 3811, 4120, 4248, 4366, 4440, 4635, 4720, 4944, 5310, 5328, 6077, 6180, 6549, 6660, 7080, 7416, 7622, 8240, 8496, 8732, 8880, 9270, 10620, 10915, 11433, 12154, 12360, 13098, 13320, 14160, 14832, 15244, 17464, 18231, 18540, 19055, 19647, 21240, 21830, 22866, 24308, 24720, 26196, 26640, 30385, 30488, 32745, 34299, 34928, 36462, 37080, 38110, 39294, 42480, 43660, 45732, 48616, 52392, 54693, 57165, 60770, 60976, 65490, 68598, 72924, 74160, 76220, 78588, 87320, 91155, 91464, 97232, 98235, 104784, 109386, 114330, 121540, 130980, 137196, 145848, 152440, 157176, 171495, 174640, 182310, 182928, 196470, 218772, 224849, 228660, 243080, 261960, 273465, 274392, 291696, 304880, 314352, 342990, 364620, 392940, 437544, 449698, 457320, 486160, 523920, 546930, 548784, 674547, 685980, 729240, 785880, 875088, 899396, 914640, 1093860, 1124245, 1349094, 1371960, 1458480, 1571760, 1798792, 2023641, 2187720, 2248490, 2698188, 2743920, 3372735, 3597584, 4047282, 4375440, 4496980, 5396376, 6745470, 8094564, 8993960, 10118205, 10792752, 13490940, 16189128, 17987920, 20236410, 26981880, 32378256, 40472820, 53963760, 80945640, 161891280]

約数ペア:

[(1, 161891280), (2, 80945640), (3, 53963760), (4, 40472820), (5, 32378256), (6, 26981880), (8, 20236410), (9, 17987920), (10, 16189128), (12, 13490940), (15, 10792752), (16, 10118205), (18, 8993960), (20, 8094564), (24, 6745470), (30, 5396376), (36, 4496980), (37, 4375440), (40, 4047282), (45, 3597584), (48, 3372735), (59, 2743920), (60, 2698188), (72, 2248490), (74, 2187720), (80, 2023641), (90, 1798792), (103, 1571760), (111, 1458480), (118, 1371960), (120, 1349094), (144, 1124245), (148, 1093860), (177, 914640), (180, 899396), (185, 875088), (206, 785880), (222, 729240), (236, 685980), (240, 674547), (295, 548784), (296, 546930), (309, 523920), (333, 486160), (354, 457320), (360, 449698), (370, 437544), (412, 392940), (444, 364620), (472, 342990), (515, 314352), (531, 304880), (555, 291696), (590, 274392), (592, 273465), (618, 261960), (666, 243080), (708, 228660), (720, 224849), (740, 218772), (824, 196470), (885, 182928), (888, 182310), (927, 174640), (944, 171495), (1030, 157176), (1062, 152440), (1110, 145848), (1180, 137196), (1236, 130980), (1332, 121540), (1416, 114330), (1480, 109386), (1545, 104784), (1648, 98235), (1665, 97232), (1770, 91464), (1776, 91155), (1854, 87320), (2060, 78588), (2124, 76220), (2183, 74160), (2220, 72924), (2360, 68598), (2472, 65490), (2655, 60976), (2664, 60770), (2832, 57165), (2960, 54693), (3090, 52392), (3330, 48616), (3540, 45732), (3708, 43660), (3811, 42480), (4120, 39294), (4248, 38110), (4366, 37080), (4440, 36462), (4635, 34928), (4720, 34299), (4944, 32745), (5310, 30488), (5328, 30385), (6077, 26640), (6180, 26196), (6549, 24720), (6660, 24308), (7080, 22866), (7416, 21830), (7622, 21240), (8240, 19647), (8496, 19055), (8732, 18540), (8880, 18231), (9270, 17464), (10620, 15244), (10915, 14832), (11433, 14160), (12154, 13320), (12360, 13098)]