165775180

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{239}}^1\times {\mathrm{439}}^1$

素因数の和:766

約数の個数: 48

約数和(自身を含む): 354816000

約数和(自身を除く): 189040820

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 239, 316, 395, 439, 478, 790, 878, 956, 1195, 1580, 1756, 2195, 2390, 4390, 4780, 8780, 18881, 34681, 37762, 69362, 75524, 94405, 104921, 138724, 173405, 188810, 209842, 346810, 377620, 419684, 524605, 693620, 1049210, 2098420, 8288759, 16577518, 33155036, 41443795, 82887590, 165775180]

約数ペア:

[(1, 165775180), (2, 82887590), (4, 41443795), (5, 33155036), (10, 16577518), (20, 8288759), (79, 2098420), (158, 1049210), (239, 693620), (316, 524605), (395, 419684), (439, 377620), (478, 346810), (790, 209842), (878, 188810), (956, 173405), (1195, 138724), (1580, 104921), (1756, 94405), (2195, 75524), (2390, 69362), (4390, 37762), (4780, 34681), (8780, 18881)]