81811440

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{37}}^2\times {\mathrm{83}}^1$

素因数の和:176

約数の個数: 180

約数和(自身を含む): 285778584

約数和(自身を除く): 203967144

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 37, 40, 45, 48, 60, 72, 74, 80, 83, 90, 111, 120, 144, 148, 166, 180, 185, 222, 240, 249, 296, 332, 333, 360, 370, 415, 444, 498, 555, 592, 664, 666, 720, 740, 747, 830, 888, 996, 1110, 1245, 1328, 1332, 1369, 1480, 1494, 1660, 1665, 1776, 1992, 2220, 2490, 2664, 2738, 2960, 2988, 3071, 3320, 3330, 3735, 3984, 4107, 4440, 4980, 5328, 5476, 5976, 6142, 6640, 6660, 6845, 7470, 8214, 8880, 9213, 9960, 10952, 11952, 12284, 12321, 13320, 13690, 14940, 15355, 16428, 18426, 19920, 20535, 21904, 24568, 24642, 26640, 27380, 27639, 29880, 30710, 32856, 36852, 41070, 46065, 49136, 49284, 54760, 55278, 59760, 61420, 61605, 65712, 73704, 82140, 92130, 98568, 109520, 110556, 113627, 122840, 123210, 138195, 147408, 164280, 184260, 197136, 221112, 227254, 245680, 246420, 276390, 328560, 340881, 368520, 442224, 454508, 492840, 552780, 568135, 681762, 737040, 909016, 985680, 1022643, 1105560, 1136270, 1363524, 1704405, 1818032, 2045286, 2211120, 2272540, 2727048, 3408810, 4090572, 4545080, 5113215, 5454096, 6817620, 8181144, 9090160, 10226430, 13635240, 16362288, 20452860, 27270480, 40905720, 81811440]

約数ペア:

[(1, 81811440), (2, 40905720), (3, 27270480), (4, 20452860), (5, 16362288), (6, 13635240), (8, 10226430), (9, 9090160), (10, 8181144), (12, 6817620), (15, 5454096), (16, 5113215), (18, 4545080), (20, 4090572), (24, 3408810), (30, 2727048), (36, 2272540), (37, 2211120), (40, 2045286), (45, 1818032), (48, 1704405), (60, 1363524), (72, 1136270), (74, 1105560), (80, 1022643), (83, 985680), (90, 909016), (111, 737040), (120, 681762), (144, 568135), (148, 552780), (166, 492840), (180, 454508), (185, 442224), (222, 368520), (240, 340881), (249, 328560), (296, 276390), (332, 246420), (333, 245680), (360, 227254), (370, 221112), (415, 197136), (444, 184260), (498, 164280), (555, 147408), (592, 138195), (664, 123210), (666, 122840), (720, 113627), (740, 110556), (747, 109520), (830, 98568), (888, 92130), (996, 82140), (1110, 73704), (1245, 65712), (1328, 61605), (1332, 61420), (1369, 59760), (1480, 55278), (1494, 54760), (1660, 49284), (1665, 49136), (1776, 46065), (1992, 41070), (2220, 36852), (2490, 32856), (2664, 30710), (2738, 29880), (2960, 27639), (2988, 27380), (3071, 26640), (3320, 24642), (3330, 24568), (3735, 21904), (3984, 20535), (4107, 19920), (4440, 18426), (4980, 16428), (5328, 15355), (5476, 14940), (5976, 13690), (6142, 13320), (6640, 12321), (6660, 12284), (6845, 11952), (7470, 10952), (8214, 9960), (8880, 9213)]