18944880

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{193}}^1\times {\mathrm{409}}^1$

素因数の和:618

約数の個数: 80

約数和(自身を含む): 59177760

約数和(自身を除く): 40232880

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 193, 240, 386, 409, 579, 772, 818, 965, 1158, 1227, 1544, 1636, 1930, 2045, 2316, 2454, 2895, 3088, 3272, 3860, 4090, 4632, 4908, 5790, 6135, 6544, 7720, 8180, 9264, 9816, 11580, 12270, 15440, 16360, 19632, 23160, 24540, 32720, 46320, 49080, 78937, 98160, 157874, 236811, 315748, 394685, 473622, 631496, 789370, 947244, 1184055, 1262992, 1578740, 1894488, 2368110, 3157480, 3788976, 4736220, 6314960, 9472440, 18944880]

約数ペア:

[(1, 18944880), (2, 9472440), (3, 6314960), (4, 4736220), (5, 3788976), (6, 3157480), (8, 2368110), (10, 1894488), (12, 1578740), (15, 1262992), (16, 1184055), (20, 947244), (24, 789370), (30, 631496), (40, 473622), (48, 394685), (60, 315748), (80, 236811), (120, 157874), (193, 98160), (240, 78937), (386, 49080), (409, 46320), (579, 32720), (772, 24540), (818, 23160), (965, 19632), (1158, 16360), (1227, 15440), (1544, 12270), (1636, 11580), (1930, 9816), (2045, 9264), (2316, 8180), (2454, 7720), (2895, 6544), (3088, 6135), (3272, 5790), (3860, 4908), (4090, 4632)]