1728791180

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{757}}^1\times {\mathrm{1283}}^1$

素因数の和:2138

約数の個数: 48

約数和(自身を含む): 3678968160

約数和(自身を除く): 1950176980

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 757, 890, 1283, 1514, 1780, 2566, 3028, 3785, 5132, 6415, 7570, 12830, 15140, 25660, 67373, 114187, 134746, 228374, 269492, 336865, 456748, 570935, 673730, 971231, 1141870, 1347460, 1942462, 2283740, 3884924, 4856155, 9712310, 19424620, 86439559, 172879118, 345758236, 432197795, 864395590, 1728791180]

約数ペア:

[(1, 1728791180), (2, 864395590), (4, 432197795), (5, 345758236), (10, 172879118), (20, 86439559), (89, 19424620), (178, 9712310), (356, 4856155), (445, 3884924), (757, 2283740), (890, 1942462), (1283, 1347460), (1514, 1141870), (1780, 971231), (2566, 673730), (3028, 570935), (3785, 456748), (5132, 336865), (6415, 269492), (7570, 228374), (12830, 134746), (15140, 114187), (25660, 67373)]