181521720

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{449}}^1\times {\mathrm{1123}}^1$

素因数の和:1589

約数の個数: 96

約数和(自身を含む): 591786000

約数和(自身を除く): 410264280

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 360, 449, 898, 1123, 1347, 1796, 2245, 2246, 2694, 3369, 3592, 4041, 4490, 4492, 5388, 5615, 6735, 6738, 8082, 8980, 8984, 10107, 10776, 11230, 13470, 13476, 16164, 16845, 17960, 20205, 20214, 22460, 26940, 26952, 32328, 33690, 40410, 40428, 44920, 50535, 53880, 67380, 80820, 80856, 101070, 134760, 161640, 202140, 404280, 504227, 1008454, 1512681, 2016908, 2521135, 3025362, 4033816, 4538043, 5042270, 6050724, 7563405, 9076086, 10084540, 12101448, 15126810, 18152172, 20169080, 22690215, 30253620, 36304344, 45380430, 60507240, 90760860, 181521720]

約数ペア:

[(1, 181521720), (2, 90760860), (3, 60507240), (4, 45380430), (5, 36304344), (6, 30253620), (8, 22690215), (9, 20169080), (10, 18152172), (12, 15126810), (15, 12101448), (18, 10084540), (20, 9076086), (24, 7563405), (30, 6050724), (36, 5042270), (40, 4538043), (45, 4033816), (60, 3025362), (72, 2521135), (90, 2016908), (120, 1512681), (180, 1008454), (360, 504227), (449, 404280), (898, 202140), (1123, 161640), (1347, 134760), (1796, 101070), (2245, 80856), (2246, 80820), (2694, 67380), (3369, 53880), (3592, 50535), (4041, 44920), (4490, 40428), (4492, 40410), (5388, 33690), (5615, 32328), (6735, 26952), (6738, 26940), (8082, 22460), (8980, 20214), (8984, 20205), (10107, 17960), (10776, 16845), (11230, 16164), (13470, 13476)]