81508320

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{23}}^2\times {\mathrm{107}}^1$

素因数の和:174

約数の個数: 216

約数和(自身を含む): 293483736

約数和(自身を除く): 211975416

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 23, 24, 30, 32, 36, 40, 45, 46, 48, 60, 69, 72, 80, 90, 92, 96, 107, 115, 120, 138, 144, 160, 180, 184, 207, 214, 230, 240, 276, 288, 321, 345, 360, 368, 414, 428, 460, 480, 529, 535, 552, 642, 690, 720, 736, 828, 856, 920, 963, 1035, 1058, 1070, 1104, 1284, 1380, 1440, 1587, 1605, 1656, 1712, 1840, 1926, 2070, 2116, 2140, 2208, 2461, 2568, 2645, 2760, 3174, 3210, 3312, 3424, 3680, 3852, 4140, 4232, 4280, 4761, 4815, 4922, 5136, 5290, 5520, 6348, 6420, 6624, 7383, 7704, 7935, 8280, 8464, 8560, 9522, 9630, 9844, 10272, 10580, 11040, 12305, 12696, 12840, 14766, 15408, 15870, 16560, 16928, 17120, 19044, 19260, 19688, 21160, 22149, 23805, 24610, 25392, 25680, 29532, 30816, 31740, 33120, 36915, 38088, 38520, 39376, 42320, 44298, 47610, 49220, 50784, 51360, 56603, 59064, 63480, 73830, 76176, 77040, 78752, 84640, 88596, 95220, 98440, 110745, 113206, 118128, 126960, 147660, 152352, 154080, 169809, 177192, 190440, 196880, 221490, 226412, 236256, 253920, 283015, 295320, 339618, 354384, 380880, 393760, 442980, 452824, 509427, 566030, 590640, 679236, 708768, 761760, 849045, 885960, 905648, 1018854, 1132060, 1181280, 1358472, 1698090, 1771920, 1811296, 2037708, 2264120, 2547135, 2716944, 3396180, 3543840, 4075416, 4528240, 5094270, 5433888, 6792360, 8150832, 9056480, 10188540, 13584720, 16301664, 20377080, 27169440, 40754160, 81508320]

約数ペア:

[(1, 81508320), (2, 40754160), (3, 27169440), (4, 20377080), (5, 16301664), (6, 13584720), (8, 10188540), (9, 9056480), (10, 8150832), (12, 6792360), (15, 5433888), (16, 5094270), (18, 4528240), (20, 4075416), (23, 3543840), (24, 3396180), (30, 2716944), (32, 2547135), (36, 2264120), (40, 2037708), (45, 1811296), (46, 1771920), (48, 1698090), (60, 1358472), (69, 1181280), (72, 1132060), (80, 1018854), (90, 905648), (92, 885960), (96, 849045), (107, 761760), (115, 708768), (120, 679236), (138, 590640), (144, 566030), (160, 509427), (180, 452824), (184, 442980), (207, 393760), (214, 380880), (230, 354384), (240, 339618), (276, 295320), (288, 283015), (321, 253920), (345, 236256), (360, 226412), (368, 221490), (414, 196880), (428, 190440), (460, 177192), (480, 169809), (529, 154080), (535, 152352), (552, 147660), (642, 126960), (690, 118128), (720, 113206), (736, 110745), (828, 98440), (856, 95220), (920, 88596), (963, 84640), (1035, 78752), (1058, 77040), (1070, 76176), (1104, 73830), (1284, 63480), (1380, 59064), (1440, 56603), (1587, 51360), (1605, 50784), (1656, 49220), (1712, 47610), (1840, 44298), (1926, 42320), (2070, 39376), (2116, 38520), (2140, 38088), (2208, 36915), (2461, 33120), (2568, 31740), (2645, 30816), (2760, 29532), (3174, 25680), (3210, 25392), (3312, 24610), (3424, 23805), (3680, 22149), (3852, 21160), (4140, 19688), (4232, 19260), (4280, 19044), (4761, 17120), (4815, 16928), (4922, 16560), (5136, 15870), (5290, 15408), (5520, 14766), (6348, 12840), (6420, 12696), (6624, 12305), (7383, 11040), (7704, 10580), (7935, 10272), (8280, 9844), (8464, 9630), (8560, 9522)]