161655900

素因数分解:

$2^2\times 3^1\times 5^2\times 7^3\times {\mathrm{1571}}^1$

素因数の和:1609

約数の個数: 144

約数和(自身を含む): 545798400

約数和(自身を除く): 384142500

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 25, 28, 30, 35, 42, 49, 50, 60, 70, 75, 84, 98, 100, 105, 140, 147, 150, 175, 196, 210, 245, 294, 300, 343, 350, 420, 490, 525, 588, 686, 700, 735, 980, 1029, 1050, 1225, 1372, 1470, 1571, 1715, 2058, 2100, 2450, 2940, 3142, 3430, 3675, 4116, 4713, 4900, 5145, 6284, 6860, 7350, 7855, 8575, 9426, 10290, 10997, 14700, 15710, 17150, 18852, 20580, 21994, 23565, 25725, 31420, 32991, 34300, 39275, 43988, 47130, 51450, 54985, 65982, 76979, 78550, 94260, 102900, 109970, 117825, 131964, 153958, 157100, 164955, 219940, 230937, 235650, 274925, 307916, 329910, 384895, 461874, 471300, 538853, 549850, 659820, 769790, 824775, 923748, 1077706, 1099700, 1154685, 1539580, 1616559, 1649550, 1924475, 2155412, 2309370, 2694265, 3233118, 3299100, 3848950, 4618740, 5388530, 5773425, 6466236, 7697900, 8082795, 10777060, 11546850, 13471325, 16165590, 23093700, 26942650, 32331180, 40413975, 53885300, 80827950, 161655900]

約数ペア:

[(1, 161655900), (2, 80827950), (3, 53885300), (4, 40413975), (5, 32331180), (6, 26942650), (7, 23093700), (10, 16165590), (12, 13471325), (14, 11546850), (15, 10777060), (20, 8082795), (21, 7697900), (25, 6466236), (28, 5773425), (30, 5388530), (35, 4618740), (42, 3848950), (49, 3299100), (50, 3233118), (60, 2694265), (70, 2309370), (75, 2155412), (84, 1924475), (98, 1649550), (100, 1616559), (105, 1539580), (140, 1154685), (147, 1099700), (150, 1077706), (175, 923748), (196, 824775), (210, 769790), (245, 659820), (294, 549850), (300, 538853), (343, 471300), (350, 461874), (420, 384895), (490, 329910), (525, 307916), (588, 274925), (686, 235650), (700, 230937), (735, 219940), (980, 164955), (1029, 157100), (1050, 153958), (1225, 131964), (1372, 117825), (1470, 109970), (1571, 102900), (1715, 94260), (2058, 78550), (2100, 76979), (2450, 65982), (2940, 54985), (3142, 51450), (3430, 47130), (3675, 43988), (4116, 39275), (4713, 34300), (4900, 32991), (5145, 31420), (6284, 25725), (6860, 23565), (7350, 21994), (7855, 20580), (8575, 18852), (9426, 17150), (10290, 15710), (10997, 14700)]