81852680

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{199}}^1$

素因数の和:343

約数の個数: 128

約数和(自身を含む): 229824000

約数和(自身を除く): 147971320

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 52, 56, 65, 70, 91, 104, 113, 130, 140, 182, 199, 226, 260, 280, 364, 398, 452, 455, 520, 565, 728, 791, 796, 904, 910, 995, 1130, 1393, 1469, 1582, 1592, 1820, 1990, 2260, 2587, 2786, 2938, 3164, 3640, 3955, 3980, 4520, 5174, 5572, 5876, 6328, 6965, 7345, 7910, 7960, 10283, 10348, 11144, 11752, 12935, 13930, 14690, 15820, 18109, 20566, 20696, 22487, 25870, 27860, 29380, 31640, 36218, 41132, 44974, 51415, 51740, 55720, 58760, 72436, 82264, 89948, 90545, 102830, 103480, 112435, 144872, 157409, 179896, 181090, 205660, 224870, 292331, 314818, 362180, 411320, 449740, 584662, 629636, 724360, 787045, 899480, 1169324, 1259272, 1461655, 1574090, 2046317, 2338648, 2923310, 3148180, 4092634, 5846620, 6296360, 8185268, 10231585, 11693240, 16370536, 20463170, 40926340, 81852680]

約数ペア:

[(1, 81852680), (2, 40926340), (4, 20463170), (5, 16370536), (7, 11693240), (8, 10231585), (10, 8185268), (13, 6296360), (14, 5846620), (20, 4092634), (26, 3148180), (28, 2923310), (35, 2338648), (40, 2046317), (52, 1574090), (56, 1461655), (65, 1259272), (70, 1169324), (91, 899480), (104, 787045), (113, 724360), (130, 629636), (140, 584662), (182, 449740), (199, 411320), (226, 362180), (260, 314818), (280, 292331), (364, 224870), (398, 205660), (452, 181090), (455, 179896), (520, 157409), (565, 144872), (728, 112435), (791, 103480), (796, 102830), (904, 90545), (910, 89948), (995, 82264), (1130, 72436), (1393, 58760), (1469, 55720), (1582, 51740), (1592, 51415), (1820, 44974), (1990, 41132), (2260, 36218), (2587, 31640), (2786, 29380), (2938, 27860), (3164, 25870), (3640, 22487), (3955, 20696), (3980, 20566), (4520, 18109), (5174, 15820), (5572, 14690), (5876, 13930), (6328, 12935), (6965, 11752), (7345, 11144), (7910, 10348), (7960, 10283)]