17996560

素因数分解:

$2^4\times 5^1\times {\mathrm{227}}^1\times {\mathrm{991}}^1$

素因数の和:1231

約数の個数: 40

約数和(自身を含む): 42068736

約数和(自身を除く): 24072176

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 227, 454, 908, 991, 1135, 1816, 1982, 2270, 3632, 3964, 4540, 4955, 7928, 9080, 9910, 15856, 18160, 19820, 39640, 79280, 224957, 449914, 899828, 1124785, 1799656, 2249570, 3599312, 4499140, 8998280, 17996560]

約数ペア:

[(1, 17996560), (2, 8998280), (4, 4499140), (5, 3599312), (8, 2249570), (10, 1799656), (16, 1124785), (20, 899828), (40, 449914), (80, 224957), (227, 79280), (454, 39640), (908, 19820), (991, 18160), (1135, 15856), (1816, 9910), (1982, 9080), (2270, 7928), (3632, 4955), (3964, 4540)]