81514440

素因数分解:

$2^3\times 3^2\times 5^1\times 7^2\times {\mathrm{4621}}^1$

素因数の和:4652

約数の個数: 144

約数和(自身を含む): 308241180

約数和(自身を除く): 226726740

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 49, 56, 60, 63, 70, 72, 84, 90, 98, 105, 120, 126, 140, 147, 168, 180, 196, 210, 245, 252, 280, 294, 315, 360, 392, 420, 441, 490, 504, 588, 630, 735, 840, 882, 980, 1176, 1260, 1470, 1764, 1960, 2205, 2520, 2940, 3528, 4410, 4621, 5880, 8820, 9242, 13863, 17640, 18484, 23105, 27726, 32347, 36968, 41589, 46210, 55452, 64694, 69315, 83178, 92420, 97041, 110904, 129388, 138630, 161735, 166356, 184840, 194082, 207945, 226429, 258776, 277260, 291123, 323470, 332712, 388164, 415890, 452858, 485205, 554520, 582246, 646940, 679287, 776328, 831780, 905716, 970410, 1132145, 1164492, 1293880, 1358574, 1455615, 1663560, 1811432, 1940820, 2037861, 2264290, 2328984, 2717148, 2911230, 3396435, 3881640, 4075722, 4528580, 5434296, 5822460, 6792870, 8151444, 9057160, 10189305, 11644920, 13585740, 16302888, 20378610, 27171480, 40757220, 81514440]

約数ペア:

[(1, 81514440), (2, 40757220), (3, 27171480), (4, 20378610), (5, 16302888), (6, 13585740), (7, 11644920), (8, 10189305), (9, 9057160), (10, 8151444), (12, 6792870), (14, 5822460), (15, 5434296), (18, 4528580), (20, 4075722), (21, 3881640), (24, 3396435), (28, 2911230), (30, 2717148), (35, 2328984), (36, 2264290), (40, 2037861), (42, 1940820), (45, 1811432), (49, 1663560), (56, 1455615), (60, 1358574), (63, 1293880), (70, 1164492), (72, 1132145), (84, 970410), (90, 905716), (98, 831780), (105, 776328), (120, 679287), (126, 646940), (140, 582246), (147, 554520), (168, 485205), (180, 452858), (196, 415890), (210, 388164), (245, 332712), (252, 323470), (280, 291123), (294, 277260), (315, 258776), (360, 226429), (392, 207945), (420, 194082), (441, 184840), (490, 166356), (504, 161735), (588, 138630), (630, 129388), (735, 110904), (840, 97041), (882, 92420), (980, 83178), (1176, 69315), (1260, 64694), (1470, 55452), (1764, 46210), (1960, 41589), (2205, 36968), (2520, 32347), (2940, 27726), (3528, 23105), (4410, 18484), (4621, 17640), (5880, 13863), (8820, 9242)]