81142560

素因数分解:

$2^5\times 3^5\times 5^1\times {\mathrm{2087}}^1$

素因数の和:2117

約数の個数: 144

約数和(自身を含む): 287292096

約数和(自身を除く): 206149536

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 72, 80, 81, 90, 96, 108, 120, 135, 144, 160, 162, 180, 216, 240, 243, 270, 288, 324, 360, 405, 432, 480, 486, 540, 648, 720, 810, 864, 972, 1080, 1215, 1296, 1440, 1620, 1944, 2087, 2160, 2430, 2592, 3240, 3888, 4174, 4320, 4860, 6261, 6480, 7776, 8348, 9720, 10435, 12522, 12960, 16696, 18783, 19440, 20870, 25044, 31305, 33392, 37566, 38880, 41740, 50088, 56349, 62610, 66784, 75132, 83480, 93915, 100176, 112698, 125220, 150264, 166960, 169047, 187830, 200352, 225396, 250440, 281745, 300528, 333920, 338094, 375660, 450792, 500880, 507141, 563490, 601056, 676188, 751320, 845235, 901584, 1001760, 1014282, 1126980, 1352376, 1502640, 1690470, 1803168, 2028564, 2253960, 2535705, 2704752, 3005280, 3380940, 4057128, 4507920, 5071410, 5409504, 6761880, 8114256, 9015840, 10142820, 13523760, 16228512, 20285640, 27047520, 40571280, 81142560]

約数ペア:

[(1, 81142560), (2, 40571280), (3, 27047520), (4, 20285640), (5, 16228512), (6, 13523760), (8, 10142820), (9, 9015840), (10, 8114256), (12, 6761880), (15, 5409504), (16, 5071410), (18, 4507920), (20, 4057128), (24, 3380940), (27, 3005280), (30, 2704752), (32, 2535705), (36, 2253960), (40, 2028564), (45, 1803168), (48, 1690470), (54, 1502640), (60, 1352376), (72, 1126980), (80, 1014282), (81, 1001760), (90, 901584), (96, 845235), (108, 751320), (120, 676188), (135, 601056), (144, 563490), (160, 507141), (162, 500880), (180, 450792), (216, 375660), (240, 338094), (243, 333920), (270, 300528), (288, 281745), (324, 250440), (360, 225396), (405, 200352), (432, 187830), (480, 169047), (486, 166960), (540, 150264), (648, 125220), (720, 112698), (810, 100176), (864, 93915), (972, 83480), (1080, 75132), (1215, 66784), (1296, 62610), (1440, 56349), (1620, 50088), (1944, 41740), (2087, 38880), (2160, 37566), (2430, 33392), (2592, 31305), (3240, 25044), (3888, 20870), (4174, 19440), (4320, 18783), (4860, 16696), (6261, 12960), (6480, 12522), (7776, 10435), (8348, 9720)]