161234640

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{31991}}^1$

素因数の和:32017

約数の個数: 120

約数和(自身を含む): 618853248

約数和(自身を除く): 457618608

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 48, 56, 60, 63, 70, 72, 80, 84, 90, 105, 112, 120, 126, 140, 144, 168, 180, 210, 240, 252, 280, 315, 336, 360, 420, 504, 560, 630, 720, 840, 1008, 1260, 1680, 2520, 5040, 31991, 63982, 95973, 127964, 159955, 191946, 223937, 255928, 287919, 319910, 383892, 447874, 479865, 511856, 575838, 639820, 671811, 767784, 895748, 959730, 1119685, 1151676, 1279640, 1343622, 1439595, 1535568, 1791496, 1919460, 2015433, 2239370, 2303352, 2559280, 2687244, 2879190, 3359055, 3582992, 3838920, 4030866, 4478740, 4606704, 5374488, 5758380, 6718110, 7677840, 8061732, 8957480, 10077165, 10748976, 11516760, 13436220, 16123464, 17914960, 20154330, 23033520, 26872440, 32246928, 40308660, 53744880, 80617320, 161234640]

約数ペア:

[(1, 161234640), (2, 80617320), (3, 53744880), (4, 40308660), (5, 32246928), (6, 26872440), (7, 23033520), (8, 20154330), (9, 17914960), (10, 16123464), (12, 13436220), (14, 11516760), (15, 10748976), (16, 10077165), (18, 8957480), (20, 8061732), (21, 7677840), (24, 6718110), (28, 5758380), (30, 5374488), (35, 4606704), (36, 4478740), (40, 4030866), (42, 3838920), (45, 3582992), (48, 3359055), (56, 2879190), (60, 2687244), (63, 2559280), (70, 2303352), (72, 2239370), (80, 2015433), (84, 1919460), (90, 1791496), (105, 1535568), (112, 1439595), (120, 1343622), (126, 1279640), (140, 1151676), (144, 1119685), (168, 959730), (180, 895748), (210, 767784), (240, 671811), (252, 639820), (280, 575838), (315, 511856), (336, 479865), (360, 447874), (420, 383892), (504, 319910), (560, 287919), (630, 255928), (720, 223937), (840, 191946), (1008, 159955), (1260, 127964), (1680, 95973), (2520, 63982), (5040, 31991)]