20451851640

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{5164609}}^1$

素因数の和:5164637

約数の個数: 96

約数和(自身を含む): 72511124400

約数和(自身を除く): 52059272760

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 18, 20, 22, 24, 30, 33, 36, 40, 44, 45, 55, 60, 66, 72, 88, 90, 99, 110, 120, 132, 165, 180, 198, 220, 264, 330, 360, 396, 440, 495, 660, 792, 990, 1320, 1980, 3960, 5164609, 10329218, 15493827, 20658436, 25823045, 30987654, 41316872, 46481481, 51646090, 56810699, 61975308, 77469135, 92962962, 103292180, 113621398, 123950616, 154938270, 170432097, 185925924, 206584360, 227242796, 232407405, 284053495, 309876540, 340864194, 371851848, 454485592, 464814810, 511296291, 568106990, 619753080, 681728388, 852160485, 929629620, 1022592582, 1136213980, 1363456776, 1704320970, 1859259240, 2045185164, 2272427960, 2556481455, 3408641940, 4090370328, 5112962910, 6817283880, 10225925820, 20451851640]

約数ペア:

[(1, 20451851640), (2, 10225925820), (3, 6817283880), (4, 5112962910), (5, 4090370328), (6, 3408641940), (8, 2556481455), (9, 2272427960), (10, 2045185164), (11, 1859259240), (12, 1704320970), (15, 1363456776), (18, 1136213980), (20, 1022592582), (22, 929629620), (24, 852160485), (30, 681728388), (33, 619753080), (36, 568106990), (40, 511296291), (44, 464814810), (45, 454485592), (55, 371851848), (60, 340864194), (66, 309876540), (72, 284053495), (88, 232407405), (90, 227242796), (99, 206584360), (110, 185925924), (120, 170432097), (132, 154938270), (165, 123950616), (180, 113621398), (198, 103292180), (220, 92962962), (264, 77469135), (330, 61975308), (360, 56810699), (396, 51646090), (440, 46481481), (495, 41316872), (660, 30987654), (792, 25823045), (990, 20658436), (1320, 15493827), (1980, 10329218), (3960, 5164609)]