19378890

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{1093}}^1$

素因数の和:1303

約数の個数: 48

約数和(自身を含む): 50687208

約数和(自身を除く): 31308318

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 197, 394, 591, 985, 1093, 1182, 1773, 1970, 2186, 2955, 3279, 3546, 5465, 5910, 6558, 8865, 9837, 10930, 16395, 17730, 19674, 32790, 49185, 98370, 215321, 430642, 645963, 1076605, 1291926, 1937889, 2153210, 3229815, 3875778, 6459630, 9689445, 19378890]

約数ペア:

[(1, 19378890), (2, 9689445), (3, 6459630), (5, 3875778), (6, 3229815), (9, 2153210), (10, 1937889), (15, 1291926), (18, 1076605), (30, 645963), (45, 430642), (90, 215321), (197, 98370), (394, 49185), (591, 32790), (985, 19674), (1093, 17730), (1182, 16395), (1773, 10930), (1970, 9837), (2186, 8865), (2955, 6558), (3279, 5910), (3546, 5465)]