1982785458520

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{10211}}^1\times {\mathrm{44537}}^1$

素因数の和:54868

約数の個数: 64

約数和(自身を含む): 4502738354400

約数和(自身を除く): 2519952895880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 872, 1090, 2180, 4360, 10211, 20422, 40844, 44537, 51055, 81688, 89074, 102110, 178148, 204220, 222685, 356296, 408440, 445370, 890740, 1112999, 1781480, 2225998, 4451996, 4854533, 5564995, 8903992, 9709066, 11129990, 19418132, 22259980, 24272665, 38836264, 44519960, 48545330, 97090660, 194181320, 454767307, 909534614, 1819069228, 2273836535, 3638138456, 4547673070, 9095346140, 18190692280, 49569636463, 99139272926, 198278545852, 247848182315, 396557091704, 495696364630, 991392729260, 1982785458520]

約数ペア:

[(1, 1982785458520), (2, 991392729260), (4, 495696364630), (5, 396557091704), (8, 247848182315), (10, 198278545852), (20, 99139272926), (40, 49569636463), (109, 18190692280), (218, 9095346140), (436, 4547673070), (545, 3638138456), (872, 2273836535), (1090, 1819069228), (2180, 909534614), (4360, 454767307), (10211, 194181320), (20422, 97090660), (40844, 48545330), (44537, 44519960), (51055, 38836264), (81688, 24272665), (89074, 22259980), (102110, 19418132), (178148, 11129990), (204220, 9709066), (222685, 8903992), (356296, 5564995), (408440, 4854533), (445370, 4451996), (890740, 2225998), (1112999, 1781480)]