180655880

素因数分解:

$2^3\times 5^1\times {\mathrm{283}}^1\times {\mathrm{15959}}^1$

素因数の和:16253

約数の個数: 32

約数和(自身を含む): 407937600

約数和(自身を除く): 227281720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 283, 566, 1132, 1415, 2264, 2830, 5660, 11320, 15959, 31918, 63836, 79795, 127672, 159590, 319180, 638360, 4516397, 9032794, 18065588, 22581985, 36131176, 45163970, 90327940, 180655880]

約数ペア:

[(1, 180655880), (2, 90327940), (4, 45163970), (5, 36131176), (8, 22581985), (10, 18065588), (20, 9032794), (40, 4516397), (283, 638360), (566, 319180), (1132, 159590), (1415, 127672), (2264, 79795), (2830, 63836), (5660, 31918), (11320, 15959)]